Preálgebra Ejemplos

$\begin{array}{c} x & y \\ 1 & 8.7 \\ 2 & 8.7 \\ 3 & 9.2 \\ 4 & 9.5 \\ 5 & 9.9 \\ 6 & 9.9 \\ 7 & 10.1 \end{array}$

Paso 1

Comprueba si la regla de la función es lineal.

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Paso 1.1

Para determinar si la tabla sigue una regla de la función, comprueba si los valores siguen la forma lineal $y = a x + b$ .

$y = a x + b$

Paso 1.2

Construye un conjunto de ecuaciones a partir de la tabla de modo que $y = a x + b$ .

$8.7 = a (1) + b 8.7 = a (2) + b 9.2 = a (3) + b 9.5 = a (4) + b 9.9 = a (5) + b 9.9 = a (6) + b 10.1 = a (7) + b$

Paso 1.3

Calcula los valores de $a$ y $b$ .

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Paso 1.3.1

Resuelve $a$ en $8.7 = a + b$ .

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Paso 1.3.1.1

Reescribe la ecuación como $a + b = 8.7$ .

$a + b = 8.7$

$8.7 = a (2) + b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.1.2

Resta $b$ de ambos lados de la ecuación.

$a = 8.7 - b$

$8.7 = a (2) + b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$a = 8.7 - b$

$8.7 = a (2) + b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2

Reemplaza todos los casos de $a$ por $8.7 - b$ en cada ecuación.

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Paso 1.3.2.1

Reemplaza todos los casos de $a$ en $8.7 = a (2) + b$ por $8.7 - b$ .

$8.7 = (8.7 - b) (2) + b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.2

Simplifica el lado derecho.

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Paso 1.3.2.2.1

Simplifica $(8.7 - b) (2) + b$ .

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Paso 1.3.2.2.1.1

Simplifica cada término.

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Paso 1.3.2.2.1.1.1

Aplica la propiedad distributiva.

$8.7 = 8.7 \cdot 2 - b \cdot 2 + b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.2.1.1.2

Multiplica $8.7$ por $2$ .

$8.7 = 17.4 - b \cdot 2 + b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.2.1.1.3

Multiplica $2$ por $- 1$ .

$8.7 = 17.4 - 2 b + b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$8.7 = 17.4 - 2 b + b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.2.1.2

Suma $- 2 b$ y $b$ .

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.2 = a (3) + b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.3

Reemplaza todos los casos de $a$ en $9.2 = a (3) + b$ por $8.7 - b$ .

$9.2 = (8.7 - b) (3) + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.4

Simplifica el lado derecho.

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Paso 1.3.2.4.1

Simplifica $(8.7 - b) (3) + b$ .

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Paso 1.3.2.4.1.1

Simplifica cada término.

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Paso 1.3.2.4.1.1.1

Aplica la propiedad distributiva.

$9.2 = 8.7 \cdot 3 - b \cdot 3 + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.4.1.1.2

Multiplica $8.7$ por $3$ .

$9.2 = 26.1 - b \cdot 3 + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.4.1.1.3

Multiplica $3$ por $- 1$ .

$9.2 = 26.1 - 3 b + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.2 = 26.1 - 3 b + b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.4.1.2

Suma $- 3 b$ y $b$ .

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = a (4) + b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.5

Reemplaza todos los casos de $a$ en $9.5 = a (4) + b$ por $8.7 - b$ .

$9.5 = (8.7 - b) (4) + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.6

Simplifica el lado derecho.

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Paso 1.3.2.6.1

Simplifica $(8.7 - b) (4) + b$ .

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Paso 1.3.2.6.1.1

Simplifica cada término.

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Paso 1.3.2.6.1.1.1

Aplica la propiedad distributiva.

$9.5 = 8.7 \cdot 4 - b \cdot 4 + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.6.1.1.2

Multiplica $8.7$ por $4$ .

$9.5 = 34.8 - b \cdot 4 + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.6.1.1.3

Multiplica $4$ por $- 1$ .

$9.5 = 34.8 - 4 b + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.5 = 34.8 - 4 b + b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.6.1.2

Suma $- 4 b$ y $b$ .

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (5) + b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.7

Reemplaza todos los casos de $a$ en $9.9 = a (5) + b$ por $8.7 - b$ .

$9.9 = (8.7 - b) (5) + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.8

Simplifica el lado derecho.

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Paso 1.3.2.8.1

Simplifica $(8.7 - b) (5) + b$ .

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Paso 1.3.2.8.1.1

Simplifica cada término.

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Paso 1.3.2.8.1.1.1

Aplica la propiedad distributiva.

$9.9 = 8.7 \cdot 5 - b \cdot 5 + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.8.1.1.2

Multiplica $8.7$ por $5$ .

$9.9 = 43.5 - b \cdot 5 + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.8.1.1.3

Multiplica $5$ por $- 1$ .

$9.9 = 43.5 - 5 b + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.9 = 43.5 - 5 b + b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.8.1.2

Suma $- 5 b$ y $b$ .

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = a (6) + b$

$10.1 = a (7) + b$

Paso 1.3.2.9

Reemplaza todos los casos de $a$ en $9.9 = a (6) + b$ por $8.7 - b$ .

$9.9 = (8.7 - b) (6) + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

Paso 1.3.2.10

Simplifica el lado derecho.

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Paso 1.3.2.10.1

Simplifica $(8.7 - b) (6) + b$ .

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Paso 1.3.2.10.1.1

Simplifica cada término.

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Paso 1.3.2.10.1.1.1

Aplica la propiedad distributiva.

$9.9 = 8.7 \cdot 6 - b \cdot 6 + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

Paso 1.3.2.10.1.1.2

Multiplica $8.7$ por $6$ .

$9.9 = 52.2 - b \cdot 6 + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

Paso 1.3.2.10.1.1.3

Multiplica $6$ por $- 1$ .

$9.9 = 52.2 - 6 b + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

$9.9 = 52.2 - 6 b + b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

Paso 1.3.2.10.1.2

Suma $- 6 b$ y $b$ .

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = a (7) + b$

Paso 1.3.2.11

Reemplaza todos los casos de $a$ en $10.1 = a (7) + b$ por $8.7 - b$ .

$10.1 = (8.7 - b) (7) + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.2.12

Simplifica el lado derecho.

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Paso 1.3.2.12.1

Simplifica $(8.7 - b) (7) + b$ .

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Paso 1.3.2.12.1.1

Simplifica cada término.

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Paso 1.3.2.12.1.1.1

Aplica la propiedad distributiva.

$10.1 = 8.7 \cdot 7 - b \cdot 7 + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.2.12.1.1.2

Multiplica $8.7$ por $7$ .

$10.1 = 60.9 - b \cdot 7 + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.2.12.1.1.3

Multiplica $7$ por $- 1$ .

$10.1 = 60.9 - 7 b + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = 60.9 - 7 b + b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.2.12.1.2

Suma $- 7 b$ y $b$ .

$10.1 = 60.9 - 6 b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = 60.9 - 6 b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = 60.9 - 6 b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$10.1 = 60.9 - 6 b$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3

Resuelve $b$ en $10.1 = 60.9 - 6 b$ .

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Paso 1.3.3.1

Reescribe la ecuación como $60.9 - 6 b = 10.1$ .

$60.9 - 6 b = 10.1$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3.2

Mueve todos los términos que no contengan $b$ al lado derecho de la ecuación.

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Paso 1.3.3.2.1

Resta $60.9$ de ambos lados de la ecuación.

$- 6 b = 10.1 - 60.9$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3.2.2

Resta $60.9$ de $10.1$ .

$- 6 b = - 50.8$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$- 6 b = - 50.8$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3.3

Divide cada término en $- 6 b = - 50.8$ por $- 6$ y simplifica.

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Paso 1.3.3.3.1

Divide cada término en $- 6 b = - 50.8$ por $- 6$ .

$\frac{- 6 b}{- 6} = \frac{- 50.8}{- 6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3.3.2

Simplifica el lado izquierdo.

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Paso 1.3.3.3.2.1

Cancela el factor común de $- 6$ .

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Paso 1.3.3.3.2.1.1

Cancela el factor común.

$\frac{- 6 b}{- 6} = \frac{- 50.8}{- 6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3.3.2.1.2

Divide $b$ por $1$ .

$b = \frac{- 50.8}{- 6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$b = \frac{- 50.8}{- 6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$b = \frac{- 50.8}{- 6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.3.3.3

Simplifica el lado derecho.

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Paso 1.3.3.3.3.1

Divide $- 50.8$ por $- 6$ .

$b = 8.4\overline{6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$b = 8.4\overline{6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$b = 8.4\overline{6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$b = 8.4\overline{6}$

$9.9 = 52.2 - 5 b$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4

Reemplaza todos los casos de $b$ por $8.4\overline{6}$ en cada ecuación.

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Paso 1.3.4.1

Reemplaza todos los casos de $b$ en $9.9 = 52.2 - 5 b$ por $8.4\overline{6}$ .

$9.9 = 52.2 - 5 \cdot 8.4\overline{6}$

$b = 8.4\overline{6}$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.2

Simplifica el lado derecho.

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Paso 1.3.4.2.1

Simplifica $52.2 - 5 \cdot 8.4\overline{6}$ .

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Paso 1.3.4.2.1.1

Multiplica $- 5$ por $8.4\overline{6}$ .

$9.9 = 52.2 - 42.\overline{3}$

$b = 8.4\overline{6}$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.2.1.2

Resta $42.\overline{3}$ de $52.2$ .

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.9 = 43.5 - 4 b$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.3

Reemplaza todos los casos de $b$ en $9.9 = 43.5 - 4 b$ por $8.4\overline{6}$ .

$9.9 = 43.5 - 4 \cdot 8.4\overline{6}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.4

Simplifica el lado derecho.

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Paso 1.3.4.4.1

Simplifica $43.5 - 4 \cdot 8.4\overline{6}$ .

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Paso 1.3.4.4.1.1

Multiplica $- 4$ por $8.4\overline{6}$ .

$9.9 = 43.5 - 33.8\overline{6}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.4.1.2

Resta $33.8\overline{6}$ de $43.5$ .

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.5 = 34.8 - 3 b$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.5

Reemplaza todos los casos de $b$ en $9.5 = 34.8 - 3 b$ por $8.4\overline{6}$ .

$9.5 = 34.8 - 3 \cdot 8.4\overline{6}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.6

Simplifica el lado derecho.

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Paso 1.3.4.6.1

Simplifica $34.8 - 3 \cdot 8.4\overline{6}$ .

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Paso 1.3.4.6.1.1

Multiplica $- 3$ por $8.4\overline{6}$ .

$9.5 = 34.8 - 25.4$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.6.1.2

Resta $25.4$ de $34.8$ .

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$9.2 = 26.1 - 2 b$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.7

Reemplaza todos los casos de $b$ en $9.2 = 26.1 - 2 b$ por $8.4\overline{6}$ .

$9.2 = 26.1 - 2 \cdot 8.4\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.8

Simplifica el lado derecho.

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Paso 1.3.4.8.1

Simplifica $26.1 - 2 \cdot 8.4\overline{6}$ .

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Paso 1.3.4.8.1.1

Multiplica $- 2$ por $8.4\overline{6}$ .

$9.2 = 26.1 - 16.9\overline{3}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.8.1.2

Resta $16.9\overline{3}$ de $26.1$ .

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$8.7 = 17.4 - b$

$a = 8.7 - b$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$8.7 = 17.4 - b$

$a = 8.7 - b$

Paso 1.3.4.9

Reemplaza todos los casos de $b$ en $8.7 = 17.4 - b$ por $8.4\overline{6}$ .

$8.7 = 17.4 - (8.4\overline{6})$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 8.7 - b$

Paso 1.3.4.10

Simplifica el lado derecho.

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Paso 1.3.4.10.1

Simplifica $17.4 - (8.4\overline{6})$ .

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Paso 1.3.4.10.1.1

Multiplica $- 1$ por $8.4\overline{6}$ .

$8.7 = 17.4 - 8.4\overline{6}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 8.7 - b$

Paso 1.3.4.10.1.2

Resta $8.4\overline{6}$ de $17.4$ .

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 8.7 - b$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 8.7 - b$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 8.7 - b$

Paso 1.3.4.11

Reemplaza todos los casos de $b$ en $a = 8.7 - b$ por $8.4\overline{6}$ .

$a = 8.7 - (8.4\overline{6})$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

Paso 1.3.4.12

Simplifica el lado derecho.

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Paso 1.3.4.12.1

Simplifica $8.7 - (8.4\overline{6})$ .

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Paso 1.3.4.12.1.1

Multiplica $- 1$ por $8.4\overline{6}$ .

$a = 8.7 - 8.4\overline{6}$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

Paso 1.3.4.12.1.2

Resta $8.4\overline{6}$ de $8.7$ .

$a = 0.2\overline{3}$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 0.2\overline{3}$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 0.2\overline{3}$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

$a = 0.2\overline{3}$

$8.7 = 8.9\overline{3}$

$9.2 = 9.1\overline{6}$

$9.5 = 9.3\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.8\overline{6}$

$b = 8.4\overline{6}$

Paso 1.3.5

Como $8.7 = 8.9\overline{3}$ no es verdadera, no hay una solución.

No hay solución

Paso 1.4

Como $y \neq y$ para los valores $x$ correspondientes, la función no es lineal.

La función no es lineal.

Paso 2

Comprueba si la regla de la función es cuadrática.

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Paso 2.1

Para determinar si la tabla sigue una regla de la función, comprueba si la regla de la función podría seguir la forma $y = a x^{2} + b x + c$ .

$y = a x^{2} + b x + c$

Paso 2.2

Construye un conjunto de $3$ ecuaciones a partir de la tabla de modo que $y = a x^{2} + b x + c$ .

Paso 2.3

Calcula los valores de $a$ , $b$ y $c$ .

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Paso 2.3.1

Resuelve $a$ en $8.7 = a + b + c$ .

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Paso 2.3.1.1

Reescribe la ecuación como $a + b + c = 8.7$ .

$a + b + c = 8.7$

$8.7 = a \cdot 2^{2} + b (2) + c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.1.2

Mueve todos los términos que no contengan $a$ al lado derecho de la ecuación.

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Paso 2.3.1.2.1

Resta $b$ de ambos lados de la ecuación.

$a + c = 8.7 - b$

$8.7 = a \cdot 2^{2} + b (2) + c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.1.2.2

Resta $c$ de ambos lados de la ecuación.

$a = 8.7 - b - c$

$8.7 = a \cdot 2^{2} + b (2) + c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$a = 8.7 - b - c$

$8.7 = a \cdot 2^{2} + b (2) + c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$a = 8.7 - b - c$

$8.7 = a \cdot 2^{2} + b (2) + c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2

Reemplaza todos los casos de $a$ por $8.7 - b - c$ en cada ecuación.

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Paso 2.3.2.1

Reemplaza todos los casos de $a$ en $8.7 = a \cdot 2^{2} + b (2) + c$ por $8.7 - b - c$ .

$8.7 = (8.7 - b - c) \cdot 2^{2} + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2

Simplifica el lado derecho.

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Paso 2.3.2.2.1

Simplifica $(8.7 - b - c) \cdot 2^{2} + b (2) + c$ .

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Paso 2.3.2.2.1.1

Simplifica cada término.

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Paso 2.3.2.2.1.1.1

Eleva $2$ a la potencia de $2$ .

$8.7 = (8.7 - b - c) \cdot 4 + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.1.2

Aplica la propiedad distributiva.

$8.7 = 8.7 \cdot 4 - b \cdot 4 - c \cdot 4 + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.1.3

Simplifica.

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Paso 2.3.2.2.1.1.3.1

Multiplica $8.7$ por $4$ .

$8.7 = 34.8 - b \cdot 4 - c \cdot 4 + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.1.3.2

Multiplica $4$ por $- 1$ .

$8.7 = 34.8 - 4 b - c \cdot 4 + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.1.3.3

Multiplica $4$ por $- 1$ .

$8.7 = 34.8 - 4 b - 4 c + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$8.7 = 34.8 - 4 b - 4 c + b (2) + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.1.4

Mueve $2$ a la izquierda de $b$ .

$8.7 = 34.8 - 4 b - 4 c + 2 b + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$8.7 = 34.8 - 4 b - 4 c + 2 b + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.2

Simplifica mediante la adición de términos.

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Paso 2.3.2.2.1.2.1

Suma $- 4 b$ y $2 b$ .

$8.7 = 34.8 - 2 b - 4 c + c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.2.1.2.2

Suma $- 4 c$ y $c$ .

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = a \cdot 3^{2} + b (3) + c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.3

Reemplaza todos los casos de $a$ en $9.2 = a \cdot 3^{2} + b (3) + c$ por $8.7 - b - c$ .

$9.2 = (8.7 - b - c) \cdot 3^{2} + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4

Simplifica el lado derecho.

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Paso 2.3.2.4.1

Simplifica $(8.7 - b - c) \cdot 3^{2} + b (3) + c$ .

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Paso 2.3.2.4.1.1

Simplifica cada término.

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Paso 2.3.2.4.1.1.1

Eleva $3$ a la potencia de $2$ .

$9.2 = (8.7 - b - c) \cdot 9 + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.1.2

Aplica la propiedad distributiva.

$9.2 = 8.7 \cdot 9 - b \cdot 9 - c \cdot 9 + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.1.3

Simplifica.

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Paso 2.3.2.4.1.1.3.1

Multiplica $8.7$ por $9$ .

$9.2 = 78.3 - b \cdot 9 - c \cdot 9 + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.1.3.2

Multiplica $9$ por $- 1$ .

$9.2 = 78.3 - 9 b - c \cdot 9 + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.1.3.3

Multiplica $9$ por $- 1$ .

$9.2 = 78.3 - 9 b - 9 c + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.2 = 78.3 - 9 b - 9 c + b (3) + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.1.4

Mueve $3$ a la izquierda de $b$ .

$9.2 = 78.3 - 9 b - 9 c + 3 b + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.2 = 78.3 - 9 b - 9 c + 3 b + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.2

Simplifica mediante la adición de términos.

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Paso 2.3.2.4.1.2.1

Suma $- 9 b$ y $3 b$ .

$9.2 = 78.3 - 6 b - 9 c + c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.4.1.2.2

Suma $- 9 c$ y $c$ .

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = a \cdot 4^{2} + b (4) + c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.5

Reemplaza todos los casos de $a$ en $9.5 = a \cdot 4^{2} + b (4) + c$ por $8.7 - b - c$ .

$9.5 = (8.7 - b - c) \cdot 4^{2} + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6

Simplifica el lado derecho.

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Paso 2.3.2.6.1

Simplifica $(8.7 - b - c) \cdot 4^{2} + b (4) + c$ .

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Paso 2.3.2.6.1.1

Simplifica cada término.

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Paso 2.3.2.6.1.1.1

Eleva $4$ a la potencia de $2$ .

$9.5 = (8.7 - b - c) \cdot 16 + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.1.2

Aplica la propiedad distributiva.

$9.5 = 8.7 \cdot 16 - b \cdot 16 - c \cdot 16 + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.1.3

Simplifica.

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Paso 2.3.2.6.1.1.3.1

Multiplica $8.7$ por $16$ .

$9.5 = 139.2 - b \cdot 16 - c \cdot 16 + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.1.3.2

Multiplica $16$ por $- 1$ .

$9.5 = 139.2 - 16 b - c \cdot 16 + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.1.3.3

Multiplica $16$ por $- 1$ .

$9.5 = 139.2 - 16 b - 16 c + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.5 = 139.2 - 16 b - 16 c + b (4) + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.1.4

Mueve $4$ a la izquierda de $b$ .

$9.5 = 139.2 - 16 b - 16 c + 4 b + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.5 = 139.2 - 16 b - 16 c + 4 b + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.2

Simplifica mediante la adición de términos.

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Paso 2.3.2.6.1.2.1

Suma $- 16 b$ y $4 b$ .

$9.5 = 139.2 - 12 b - 16 c + c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.6.1.2.2

Suma $- 16 c$ y $c$ .

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 5^{2} + b (5) + c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.7

Reemplaza todos los casos de $a$ en $9.9 = a \cdot 5^{2} + b (5) + c$ por $8.7 - b - c$ .

$9.9 = (8.7 - b - c) \cdot 5^{2} + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8

Simplifica el lado derecho.

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Paso 2.3.2.8.1

Simplifica $(8.7 - b - c) \cdot 5^{2} + b (5) + c$ .

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Paso 2.3.2.8.1.1

Simplifica cada término.

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Paso 2.3.2.8.1.1.1

Eleva $5$ a la potencia de $2$ .

$9.9 = (8.7 - b - c) \cdot 25 + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.1.2

Aplica la propiedad distributiva.

$9.9 = 8.7 \cdot 25 - b \cdot 25 - c \cdot 25 + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.1.3

Simplifica.

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Paso 2.3.2.8.1.1.3.1

Multiplica $8.7$ por $25$ .

$9.9 = 217.5 - b \cdot 25 - c \cdot 25 + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.1.3.2

Multiplica $25$ por $- 1$ .

$9.9 = 217.5 - 25 b - c \cdot 25 + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.1.3.3

Multiplica $25$ por $- 1$ .

$9.9 = 217.5 - 25 b - 25 c + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 217.5 - 25 b - 25 c + b (5) + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.1.4

Mueve $5$ a la izquierda de $b$ .

$9.9 = 217.5 - 25 b - 25 c + 5 b + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 217.5 - 25 b - 25 c + 5 b + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.2

Simplifica mediante la adición de términos.

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Paso 2.3.2.8.1.2.1

Suma $- 25 b$ y $5 b$ .

$9.9 = 217.5 - 20 b - 25 c + c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.8.1.2.2

Suma $- 25 c$ y $c$ .

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = a \cdot 6^{2} + b (6) + c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.9

Reemplaza todos los casos de $a$ en $9.9 = a \cdot 6^{2} + b (6) + c$ por $8.7 - b - c$ .

$9.9 = (8.7 - b - c) \cdot 6^{2} + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10

Simplifica el lado derecho.

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Paso 2.3.2.10.1

Simplifica $(8.7 - b - c) \cdot 6^{2} + b (6) + c$ .

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Paso 2.3.2.10.1.1

Simplifica cada término.

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Paso 2.3.2.10.1.1.1

Eleva $6$ a la potencia de $2$ .

$9.9 = (8.7 - b - c) \cdot 36 + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.1.2

Aplica la propiedad distributiva.

$9.9 = 8.7 \cdot 36 - b \cdot 36 - c \cdot 36 + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.1.3

Simplifica.

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Paso 2.3.2.10.1.1.3.1

Multiplica $8.7$ por $36$ .

$9.9 = 313.2 - b \cdot 36 - c \cdot 36 + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.1.3.2

Multiplica $36$ por $- 1$ .

$9.9 = 313.2 - 36 b - c \cdot 36 + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.1.3.3

Multiplica $36$ por $- 1$ .

$9.9 = 313.2 - 36 b - 36 c + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 313.2 - 36 b - 36 c + b (6) + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.1.4

Mueve $6$ a la izquierda de $b$ .

$9.9 = 313.2 - 36 b - 36 c + 6 b + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 313.2 - 36 b - 36 c + 6 b + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.2

Simplifica mediante la adición de términos.

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Paso 2.3.2.10.1.2.1

Suma $- 36 b$ y $6 b$ .

$9.9 = 313.2 - 30 b - 36 c + c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.10.1.2.2

Suma $- 36 c$ y $c$ .

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = a \cdot 7^{2} + b (7) + c$

Paso 2.3.2.11

Reemplaza todos los casos de $a$ en $10.1 = a \cdot 7^{2} + b (7) + c$ por $8.7 - b - c$ .

$10.1 = (8.7 - b - c) \cdot 7^{2} + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12

Simplifica el lado derecho.

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Paso 2.3.2.12.1

Simplifica $(8.7 - b - c) \cdot 7^{2} + b (7) + c$ .

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Paso 2.3.2.12.1.1

Simplifica cada término.

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Paso 2.3.2.12.1.1.1

Eleva $7$ a la potencia de $2$ .

$10.1 = (8.7 - b - c) \cdot 49 + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.1.2

Aplica la propiedad distributiva.

$10.1 = 8.7 \cdot 49 - b \cdot 49 - c \cdot 49 + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.1.3

Simplifica.

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Paso 2.3.2.12.1.1.3.1

Multiplica $8.7$ por $49$ .

$10.1 = 426.3 - b \cdot 49 - c \cdot 49 + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.1.3.2

Multiplica $49$ por $- 1$ .

$10.1 = 426.3 - 49 b - c \cdot 49 + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.1.3.3

Multiplica $49$ por $- 1$ .

$10.1 = 426.3 - 49 b - 49 c + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = 426.3 - 49 b - 49 c + b (7) + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.1.4

Mueve $7$ a la izquierda de $b$ .

$10.1 = 426.3 - 49 b - 49 c + 7 b + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = 426.3 - 49 b - 49 c + 7 b + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.2

Simplifica mediante la adición de términos.

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Paso 2.3.2.12.1.2.1

Suma $- 49 b$ y $7 b$ .

$10.1 = 426.3 - 42 b - 49 c + c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.2.12.1.2.2

Suma $- 49 c$ y $c$ .

$10.1 = 426.3 - 42 b - 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = 426.3 - 42 b - 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = 426.3 - 42 b - 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = 426.3 - 42 b - 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$10.1 = 426.3 - 42 b - 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3

Resuelve $b$ en $10.1 = 426.3 - 42 b - 48 c$ .

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Paso 2.3.3.1

Reescribe la ecuación como $426.3 - 42 b - 48 c = 10.1$ .

$426.3 - 42 b - 48 c = 10.1$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.2

Mueve todos los términos que no contengan $b$ al lado derecho de la ecuación.

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Paso 2.3.3.2.1

Resta $426.3$ de ambos lados de la ecuación.

$- 42 b - 48 c = 10.1 - 426.3$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.2.2

Suma $48 c$ a ambos lados de la ecuación.

$- 42 b = 10.1 - 426.3 + 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.2.3

Resta $426.3$ de $10.1$ .

$- 42 b = - 416.2 + 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$- 42 b = - 416.2 + 48 c$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3

Divide cada término en $- 42 b = - 416.2 + 48 c$ por $- 42$ y simplifica.

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Paso 2.3.3.3.1

Divide cada término en $- 42 b = - 416.2 + 48 c$ por $- 42$ .

$\frac{- 42 b}{- 42} = \frac{- 416.2}{- 42} + \frac{48 c}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.2

Simplifica el lado izquierdo.

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Paso 2.3.3.3.2.1

Cancela el factor común de $- 42$ .

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Paso 2.3.3.3.2.1.1

Cancela el factor común.

$\frac{- 42 b}{- 42} = \frac{- 416.2}{- 42} + \frac{48 c}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.2.1.2

Divide $b$ por $1$ .

$b = \frac{- 416.2}{- 42} + \frac{48 c}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = \frac{- 416.2}{- 42} + \frac{48 c}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = \frac{- 416.2}{- 42} + \frac{48 c}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.3

Simplifica el lado derecho.

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Paso 2.3.3.3.3.1

Simplifica cada término.

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Paso 2.3.3.3.3.1.1

Divide $- 416.2$ por $- 42$ .

$b = 9.9\overline{095238} + \frac{48 c}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.3.1.2

Cancela el factor común de $48$ y $- 42$ .

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Paso 2.3.3.3.3.1.2.1

Factoriza $6$ de $48 c$ .

$b = 9.9\overline{095238} + \frac{6 (8 c)}{- 42}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.3.1.2.2

Cancela los factores comunes.

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Paso 2.3.3.3.3.1.2.2.1

Factoriza $6$ de $- 42$ .

$b = 9.9\overline{095238} + \frac{6 (8 c)}{6 (- 7)}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.3.1.2.2.2

Cancela el factor común.

$b = 9.9\overline{095238} + \frac{6 (8 c)}{6 \cdot - 7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.3.1.2.2.3

Reescribe la expresión.

$b = 9.9\overline{095238} + \frac{8 c}{- 7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = 9.9\overline{095238} + \frac{8 c}{- 7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = 9.9\overline{095238} + \frac{8 c}{- 7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.3.3.3.1.3

Mueve el negativo al frente de la fracción.

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 313.2 - 30 b - 35 c$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4

Reemplaza todos los casos de $b$ por $9.9\overline{095238} - \frac{8 c}{7}$ en cada ecuación.

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Paso 2.3.4.1

Reemplaza todos los casos de $b$ en $9.9 = 313.2 - 30 b - 35 c$ por $9.9\overline{095238} - \frac{8 c}{7}$ .

$9.9 = 313.2 - 30 (9.9\overline{095238} - \frac{8 c}{7}) - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2

Simplifica el lado derecho.

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Paso 2.3.4.2.1

Simplifica $313.2 - 30 (9.9\overline{095238} - \frac{8 c}{7}) - 35 c$ .

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Paso 2.3.4.2.1.1

Simplifica cada término.

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Paso 2.3.4.2.1.1.1

Aplica la propiedad distributiva.

$9.9 = 313.2 - 30 \cdot 9.9\overline{095238} - 30 (- \frac{8 c}{7}) - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.1.2

Multiplica $- 30$ por $9.9\overline{095238}$ .

$9.9 = 313.2 - 297.\overline{285714} - 30 (- \frac{8 c}{7}) - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.1.3

Multiplica $- 30 (- \frac{8 c}{7})$ .

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Paso 2.3.4.2.1.1.3.1

Multiplica $- 1$ por $- 30$ .

$9.9 = 313.2 - 297.\overline{285714} + 30 (\frac{8 c}{7}) - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.1.3.2

Combina $30$ y $\frac{8 c}{7}$ .

$9.9 = 313.2 - 297.\overline{285714} + \frac{30 (8 c)}{7} - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.1.3.3

Multiplica $8$ por $30$ .

$9.9 = 313.2 - 297.\overline{285714} + \frac{240 c}{7} - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 313.2 - 297.\overline{285714} + \frac{240 c}{7} - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 313.2 - 297.\overline{285714} + \frac{240 c}{7} - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.2

Resta $297.\overline{285714}$ de $313.2$ .

$9.9 = 15.9\overline{142857} + \frac{240 c}{7} - 35 c$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.3

Para escribir $- 35 c$ como una fracción con un denominador común, multiplica por $\frac{7}{7}$ .

$9.9 = 15.9\overline{142857} + \frac{240 c}{7} - 35 c \cdot \frac{7}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.4

Simplifica los términos.

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Paso 2.3.4.2.1.4.1

Combina $- 35 c$ y $\frac{7}{7}$ .

$9.9 = 15.9\overline{142857} + \frac{240 c}{7} + \frac{- 35 c \cdot 7}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.4.2

Combina los numeradores sobre el denominador común.

$9.9 = 15.9\overline{142857} + \frac{240 c - 35 c \cdot 7}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 15.9\overline{142857} + \frac{240 c - 35 c \cdot 7}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5

Simplifica cada término.

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Paso 2.3.4.2.1.5.1

Simplifica el numerador.

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Paso 2.3.4.2.1.5.1.1

Factoriza $5 c$ de $240 c - 35 c \cdot 7$ .

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Paso 2.3.4.2.1.5.1.1.1

Factoriza $5 c$ de $240 c$ .

$9.9 = 15.9\overline{142857} + \frac{5 c (48) - 35 c \cdot 7}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5.1.1.2

Factoriza $5 c$ de $- 35 c \cdot 7$ .

$9.9 = 15.9\overline{142857} + \frac{5 c (48) + 5 c (- 7 \cdot 7)}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5.1.1.3

Factoriza $5 c$ de $5 c (48) + 5 c (- 7 \cdot 7)$ .

$9.9 = 15.9\overline{142857} + \frac{5 c (48 - 7 \cdot 7)}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 15.9\overline{142857} + \frac{5 c (48 - 7 \cdot 7)}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5.1.2

Multiplica $- 7$ por $7$ .

$9.9 = 15.9\overline{142857} + \frac{5 c (48 - 49)}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5.1.3

Resta $49$ de $48$ .

$9.9 = 15.9\overline{142857} + \frac{5 c \cdot - 1}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5.1.4

Multiplica $- 1$ por $5$ .

$9.9 = 15.9\overline{142857} + \frac{- 5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 15.9\overline{142857} + \frac{- 5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.2.1.5.2

Mueve el negativo al frente de la fracción.

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 217.5 - 20 b - 24 c$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.3

Reemplaza todos los casos de $b$ en $9.9 = 217.5 - 20 b - 24 c$ por $9.9\overline{095238} - \frac{8 c}{7}$ .

$9.9 = 217.5 - 20 (9.9\overline{095238} - \frac{8 c}{7}) - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4

Simplifica el lado derecho.

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Paso 2.3.4.4.1

Simplifica $217.5 - 20 (9.9\overline{095238} - \frac{8 c}{7}) - 24 c$ .

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Paso 2.3.4.4.1.1

Simplifica cada término.

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Paso 2.3.4.4.1.1.1

Aplica la propiedad distributiva.

$9.9 = 217.5 - 20 \cdot 9.9\overline{095238} - 20 (- \frac{8 c}{7}) - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.1.2

Multiplica $- 20$ por $9.9\overline{095238}$ .

$9.9 = 217.5 - 198.\overline{190476} - 20 (- \frac{8 c}{7}) - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.1.3

Multiplica $- 20 (- \frac{8 c}{7})$ .

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Paso 2.3.4.4.1.1.3.1

Multiplica $- 1$ por $- 20$ .

$9.9 = 217.5 - 198.\overline{190476} + 20 (\frac{8 c}{7}) - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.1.3.2

Combina $20$ y $\frac{8 c}{7}$ .

$9.9 = 217.5 - 198.\overline{190476} + \frac{20 (8 c)}{7} - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.1.3.3

Multiplica $8$ por $20$ .

$9.9 = 217.5 - 198.\overline{190476} + \frac{160 c}{7} - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 217.5 - 198.\overline{190476} + \frac{160 c}{7} - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 217.5 - 198.\overline{190476} + \frac{160 c}{7} - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.2

Resta $198.\overline{190476}$ de $217.5$ .

$9.9 = 19.3\overline{095238} + \frac{160 c}{7} - 24 c$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.3

Para escribir $- 24 c$ como una fracción con un denominador común, multiplica por $\frac{7}{7}$ .

$9.9 = 19.3\overline{095238} + \frac{160 c}{7} - 24 c \cdot \frac{7}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.4

Simplifica los términos.

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Paso 2.3.4.4.1.4.1

Combina $- 24 c$ y $\frac{7}{7}$ .

$9.9 = 19.3\overline{095238} + \frac{160 c}{7} + \frac{- 24 c \cdot 7}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.4.2

Combina los numeradores sobre el denominador común.

$9.9 = 19.3\overline{095238} + \frac{160 c - 24 c \cdot 7}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 19.3\overline{095238} + \frac{160 c - 24 c \cdot 7}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5

Simplifica cada término.

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Paso 2.3.4.4.1.5.1

Simplifica el numerador.

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Paso 2.3.4.4.1.5.1.1

Factoriza $8 c$ de $160 c - 24 c \cdot 7$ .

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Paso 2.3.4.4.1.5.1.1.1

Factoriza $8 c$ de $160 c$ .

$9.9 = 19.3\overline{095238} + \frac{8 c (20) - 24 c \cdot 7}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5.1.1.2

Factoriza $8 c$ de $- 24 c \cdot 7$ .

$9.9 = 19.3\overline{095238} + \frac{8 c (20) + 8 c (- 3 \cdot 7)}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5.1.1.3

Factoriza $8 c$ de $8 c (20) + 8 c (- 3 \cdot 7)$ .

$9.9 = 19.3\overline{095238} + \frac{8 c (20 - 3 \cdot 7)}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 19.3\overline{095238} + \frac{8 c (20 - 3 \cdot 7)}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5.1.2

Multiplica $- 3$ por $7$ .

$9.9 = 19.3\overline{095238} + \frac{8 c (20 - 21)}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5.1.3

Resta $21$ de $20$ .

$9.9 = 19.3\overline{095238} + \frac{8 c \cdot - 1}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5.1.4

Multiplica $- 1$ por $8$ .

$9.9 = 19.3\overline{095238} + \frac{- 8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 19.3\overline{095238} + \frac{- 8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.4.1.5.2

Mueve el negativo al frente de la fracción.

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 139.2 - 12 b - 15 c$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.5

Reemplaza todos los casos de $b$ en $9.5 = 139.2 - 12 b - 15 c$ por $9.9\overline{095238} - \frac{8 c}{7}$ .

$9.5 = 139.2 - 12 (9.9\overline{095238} - \frac{8 c}{7}) - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6

Simplifica el lado derecho.

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Paso 2.3.4.6.1

Simplifica $139.2 - 12 (9.9\overline{095238} - \frac{8 c}{7}) - 15 c$ .

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Paso 2.3.4.6.1.1

Simplifica cada término.

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Paso 2.3.4.6.1.1.1

Aplica la propiedad distributiva.

$9.5 = 139.2 - 12 \cdot 9.9\overline{095238} - 12 (- \frac{8 c}{7}) - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.1.2

Multiplica $- 12$ por $9.9\overline{095238}$ .

$9.5 = 139.2 - 118.9\overline{142857} - 12 (- \frac{8 c}{7}) - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.1.3

Multiplica $- 12 (- \frac{8 c}{7})$ .

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Paso 2.3.4.6.1.1.3.1

Multiplica $- 1$ por $- 12$ .

$9.5 = 139.2 - 118.9\overline{142857} + 12 (\frac{8 c}{7}) - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.1.3.2

Combina $12$ y $\frac{8 c}{7}$ .

$9.5 = 139.2 - 118.9\overline{142857} + \frac{12 (8 c)}{7} - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.1.3.3

Multiplica $8$ por $12$ .

$9.5 = 139.2 - 118.9\overline{142857} + \frac{96 c}{7} - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 139.2 - 118.9\overline{142857} + \frac{96 c}{7} - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 139.2 - 118.9\overline{142857} + \frac{96 c}{7} - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.2

Resta $118.9\overline{142857}$ de $139.2$ .

$9.5 = 20.\overline{285714} + \frac{96 c}{7} - 15 c$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.3

Para escribir $- 15 c$ como una fracción con un denominador común, multiplica por $\frac{7}{7}$ .

$9.5 = 20.\overline{285714} + \frac{96 c}{7} - 15 c \cdot \frac{7}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.4

Simplifica los términos.

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Paso 2.3.4.6.1.4.1

Combina $- 15 c$ y $\frac{7}{7}$ .

$9.5 = 20.\overline{285714} + \frac{96 c}{7} + \frac{- 15 c \cdot 7}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.4.2

Combina los numeradores sobre el denominador común.

$9.5 = 20.\overline{285714} + \frac{96 c - 15 c \cdot 7}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 20.\overline{285714} + \frac{96 c - 15 c \cdot 7}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5

Simplifica cada término.

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Paso 2.3.4.6.1.5.1

Simplifica el numerador.

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Paso 2.3.4.6.1.5.1.1

Factoriza $3 c$ de $96 c - 15 c \cdot 7$ .

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Paso 2.3.4.6.1.5.1.1.1

Factoriza $3 c$ de $96 c$ .

$9.5 = 20.\overline{285714} + \frac{3 c (32) - 15 c \cdot 7}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5.1.1.2

Factoriza $3 c$ de $- 15 c \cdot 7$ .

$9.5 = 20.\overline{285714} + \frac{3 c (32) + 3 c (- 5 \cdot 7)}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5.1.1.3

Factoriza $3 c$ de $3 c (32) + 3 c (- 5 \cdot 7)$ .

$9.5 = 20.\overline{285714} + \frac{3 c (32 - 5 \cdot 7)}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 20.\overline{285714} + \frac{3 c (32 - 5 \cdot 7)}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5.1.2

Multiplica $- 5$ por $7$ .

$9.5 = 20.\overline{285714} + \frac{3 c (32 - 35)}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5.1.3

Resta $35$ de $32$ .

$9.5 = 20.\overline{285714} + \frac{3 c \cdot - 3}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5.1.4

Multiplica $- 3$ por $3$ .

$9.5 = 20.\overline{285714} + \frac{- 9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 20.\overline{285714} + \frac{- 9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.6.1.5.2

Mueve el negativo al frente de la fracción.

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 78.3 - 6 b - 8 c$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.7

Reemplaza todos los casos de $b$ en $9.2 = 78.3 - 6 b - 8 c$ por $9.9\overline{095238} - \frac{8 c}{7}$ .

$9.2 = 78.3 - 6 (9.9\overline{095238} - \frac{8 c}{7}) - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8

Simplifica el lado derecho.

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Paso 2.3.4.8.1

Simplifica $78.3 - 6 (9.9\overline{095238} - \frac{8 c}{7}) - 8 c$ .

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Paso 2.3.4.8.1.1

Simplifica cada término.

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Paso 2.3.4.8.1.1.1

Aplica la propiedad distributiva.

$9.2 = 78.3 - 6 \cdot 9.9\overline{095238} - 6 (- \frac{8 c}{7}) - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.1.2

Multiplica $- 6$ por $9.9\overline{095238}$ .

$9.2 = 78.3 - 59.4\overline{571428} - 6 (- \frac{8 c}{7}) - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.1.3

Multiplica $- 6 (- \frac{8 c}{7})$ .

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Paso 2.3.4.8.1.1.3.1

Multiplica $- 1$ por $- 6$ .

$9.2 = 78.3 - 59.4\overline{571428} + 6 (\frac{8 c}{7}) - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.1.3.2

Combina $6$ y $\frac{8 c}{7}$ .

$9.2 = 78.3 - 59.4\overline{571428} + \frac{6 (8 c)}{7} - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.1.3.3

Multiplica $8$ por $6$ .

$9.2 = 78.3 - 59.4\overline{571428} + \frac{48 c}{7} - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 78.3 - 59.4\overline{571428} + \frac{48 c}{7} - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 78.3 - 59.4\overline{571428} + \frac{48 c}{7} - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.2

Resta $59.4\overline{571428}$ de $78.3$ .

$9.2 = 18.8\overline{428571} + \frac{48 c}{7} - 8 c$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.3

Para escribir $- 8 c$ como una fracción con un denominador común, multiplica por $\frac{7}{7}$ .

$9.2 = 18.8\overline{428571} + \frac{48 c}{7} - 8 c \cdot \frac{7}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.4

Simplifica los términos.

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Paso 2.3.4.8.1.4.1

Combina $- 8 c$ y $\frac{7}{7}$ .

$9.2 = 18.8\overline{428571} + \frac{48 c}{7} + \frac{- 8 c \cdot 7}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.4.2

Combina los numeradores sobre el denominador común.

$9.2 = 18.8\overline{428571} + \frac{48 c - 8 c \cdot 7}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 18.8\overline{428571} + \frac{48 c - 8 c \cdot 7}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5

Simplifica cada término.

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Paso 2.3.4.8.1.5.1

Simplifica el numerador.

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Paso 2.3.4.8.1.5.1.1

Factoriza $8 c$ de $48 c - 8 c \cdot 7$ .

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Paso 2.3.4.8.1.5.1.1.1

Factoriza $8 c$ de $48 c$ .

$9.2 = 18.8\overline{428571} + \frac{8 c (6) - 8 c \cdot 7}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5.1.1.2

Factoriza $8 c$ de $- 8 c \cdot 7$ .

$9.2 = 18.8\overline{428571} + \frac{8 c (6) + 8 c (- 1 \cdot 7)}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5.1.1.3

Factoriza $8 c$ de $8 c (6) + 8 c (- 1 \cdot 7)$ .

$9.2 = 18.8\overline{428571} + \frac{8 c (6 - 1 \cdot 7)}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 18.8\overline{428571} + \frac{8 c (6 - 1 \cdot 7)}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5.1.2

Multiplica $- 1$ por $7$ .

$9.2 = 18.8\overline{428571} + \frac{8 c (6 - 7)}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5.1.3

Resta $7$ de $6$ .

$9.2 = 18.8\overline{428571} + \frac{8 c \cdot - 1}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5.1.4

Multiplica $- 1$ por $8$ .

$9.2 = 18.8\overline{428571} + \frac{- 8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 18.8\overline{428571} + \frac{- 8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.8.1.5.2

Mueve el negativo al frente de la fracción.

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$8.7 = 34.8 - 2 b - 3 c$

$a = 8.7 - b - c$

Paso 2.3.4.9

Reemplaza todos los casos de $b$ en $8.7 = 34.8 - 2 b - 3 c$ por $9.9\overline{095238} - \frac{8 c}{7}$ .

$8.7 = 34.8 - 2 (9.9\overline{095238} - \frac{8 c}{7}) - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10

Simplifica el lado derecho.

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Paso 2.3.4.10.1

Simplifica $34.8 - 2 (9.9\overline{095238} - \frac{8 c}{7}) - 3 c$ .

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Paso 2.3.4.10.1.1

Simplifica cada término.

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Paso 2.3.4.10.1.1.1

Aplica la propiedad distributiva.

$8.7 = 34.8 - 2 \cdot 9.9\overline{095238} - 2 (- \frac{8 c}{7}) - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.1.2

Multiplica $- 2$ por $9.9\overline{095238}$ .

$8.7 = 34.8 - 19.8\overline{190476} - 2 (- \frac{8 c}{7}) - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.1.3

Multiplica $- 2 (- \frac{8 c}{7})$ .

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Paso 2.3.4.10.1.1.3.1

Multiplica $- 1$ por $- 2$ .

$8.7 = 34.8 - 19.8\overline{190476} + 2 (\frac{8 c}{7}) - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.1.3.2

Combina $2$ y $\frac{8 c}{7}$ .

$8.7 = 34.8 - 19.8\overline{190476} + \frac{2 (8 c)}{7} - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.1.3.3

Multiplica $8$ por $2$ .

$8.7 = 34.8 - 19.8\overline{190476} + \frac{16 c}{7} - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 34.8 - 19.8\overline{190476} + \frac{16 c}{7} - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 34.8 - 19.8\overline{190476} + \frac{16 c}{7} - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.2

Resta $19.8\overline{190476}$ de $34.8$ .

$8.7 = 14.9\overline{809523} + \frac{16 c}{7} - 3 c$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.3

Para escribir $- 3 c$ como una fracción con un denominador común, multiplica por $\frac{7}{7}$ .

$8.7 = 14.9\overline{809523} + \frac{16 c}{7} - 3 c \cdot \frac{7}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.4

Simplifica los términos.

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Paso 2.3.4.10.1.4.1

Combina $- 3 c$ y $\frac{7}{7}$ .

$8.7 = 14.9\overline{809523} + \frac{16 c}{7} + \frac{- 3 c \cdot 7}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.4.2

Combina los numeradores sobre el denominador común.

$8.7 = 14.9\overline{809523} + \frac{16 c - 3 c \cdot 7}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 14.9\overline{809523} + \frac{16 c - 3 c \cdot 7}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5

Simplifica cada término.

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Paso 2.3.4.10.1.5.1

Simplifica el numerador.

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Paso 2.3.4.10.1.5.1.1

Factoriza $c$ de $16 c - 3 c \cdot 7$ .

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Paso 2.3.4.10.1.5.1.1.1

Factoriza $c$ de $16 c$ .

$8.7 = 14.9\overline{809523} + \frac{c \cdot 16 - 3 c \cdot 7}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5.1.1.2

Factoriza $c$ de $- 3 c \cdot 7$ .

$8.7 = 14.9\overline{809523} + \frac{c \cdot 16 + c (- 3 \cdot 7)}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5.1.1.3

Factoriza $c$ de $c \cdot 16 + c (- 3 \cdot 7)$ .

$8.7 = 14.9\overline{809523} + \frac{c (16 - 3 \cdot 7)}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 14.9\overline{809523} + \frac{c (16 - 3 \cdot 7)}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5.1.2

Multiplica $- 3$ por $7$ .

$8.7 = 14.9\overline{809523} + \frac{c (16 - 21)}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5.1.3

Resta $21$ de $16$ .

$8.7 = 14.9\overline{809523} + \frac{c \cdot - 5}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 14.9\overline{809523} + \frac{c \cdot - 5}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5.2

Mueve $- 5$ a la izquierda de $c$ .

$8.7 = 14.9\overline{809523} + \frac{- 5 \cdot c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.10.1.5.3

Mueve el negativo al frente de la fracción.

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - b - c$

Paso 2.3.4.11

Reemplaza todos los casos de $b$ en $a = 8.7 - b - c$ por $9.9\overline{095238} - \frac{8 c}{7}$ .

$a = 8.7 - (9.9\overline{095238} - \frac{8 c}{7}) - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12

Simplifica el lado derecho.

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Paso 2.3.4.12.1

Simplifica $8.7 - (9.9\overline{095238} - \frac{8 c}{7}) - c$ .

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Paso 2.3.4.12.1.1

Simplifica cada término.

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Paso 2.3.4.12.1.1.1

Aplica la propiedad distributiva.

$a = 8.7 - 1 \cdot 9.9\overline{095238} + \frac{8 c}{7} - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.1.2

Multiplica $- 1$ por $9.9\overline{095238}$ .

$a = 8.7 - 9.9\overline{095238} + \frac{8 c}{7} - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.1.3

Multiplica $- - \frac{8 c}{7}$ .

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Paso 2.3.4.12.1.1.3.1

Multiplica $- 1$ por $- 1$ .

$a = 8.7 - 9.9\overline{095238} + 1 (\frac{8 c}{7}) - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.1.3.2

Multiplica $\frac{8 c}{7}$ por $1$ .

$a = 8.7 - 9.9\overline{095238} + \frac{8 c}{7} - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - 9.9\overline{095238} + \frac{8 c}{7} - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 8.7 - 9.9\overline{095238} + \frac{8 c}{7} - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.2

Resta $9.9\overline{095238}$ de $8.7$ .

$a = - 1.2\overline{095238} + \frac{8 c}{7} - c$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.3

Para escribir $- c$ como una fracción con un denominador común, multiplica por $\frac{7}{7}$ .

$a = - 1.2\overline{095238} + \frac{8 c}{7} - c \cdot \frac{7}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.4

Simplifica los términos.

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Paso 2.3.4.12.1.4.1

Combina $- c$ y $\frac{7}{7}$ .

$a = - 1.2\overline{095238} + \frac{8 c}{7} + \frac{- c \cdot 7}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.4.2

Combina los numeradores sobre el denominador común.

$a = - 1.2\overline{095238} + \frac{8 c - c \cdot 7}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{8 c - c \cdot 7}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.5

Simplifica cada término.

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Paso 2.3.4.12.1.5.1

Simplifica el numerador.

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Paso 2.3.4.12.1.5.1.1

Factoriza $c$ de $8 c - c \cdot 7$ .

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Paso 2.3.4.12.1.5.1.1.1

Factoriza $c$ de $8 c$ .

$a = - 1.2\overline{095238} + \frac{c \cdot 8 - c \cdot 7}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.5.1.1.2

Factoriza $c$ de $- c \cdot 7$ .

$a = - 1.2\overline{095238} + \frac{c \cdot 8 + c (- 1 \cdot 7)}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.5.1.1.3

Factoriza $c$ de $c \cdot 8 + c (- 1 \cdot 7)$ .

$a = - 1.2\overline{095238} + \frac{c (8 - 1 \cdot 7)}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{c (8 - 1 \cdot 7)}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.5.1.2

Multiplica $- 1$ por $7$ .

$a = - 1.2\overline{095238} + \frac{c (8 - 7)}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.5.1.3

Resta $7$ de $8$ .

$a = - 1.2\overline{095238} + \frac{c \cdot 1}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{c \cdot 1}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.4.12.1.5.2

Multiplica $c$ por $1$ .

$a = - 1.2\overline{095238} + \frac{c}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$8.7 = 14.9\overline{809523} - \frac{5 c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5

Resuelve $c$ en $8.7 = 14.9\overline{809523} - \frac{5 c}{7}$ .

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Paso 2.3.5.1

Reescribe la ecuación como $14.9\overline{809523} - \frac{5 c}{7} = 8.7$ .

$14.9\overline{809523} - \frac{5 c}{7} = 8.7$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.2

Mueve todos los términos que no contengan $c$ al lado derecho de la ecuación.

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Paso 2.3.5.2.1

Resta $14.9\overline{809523}$ de ambos lados de la ecuación.

$- \frac{5 c}{7} = 8.7 - 14.9\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.2.2

Resta $14.9\overline{809523}$ de $8.7$ .

$- \frac{5 c}{7} = - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$- \frac{5 c}{7} = - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.3

Multiplica ambos lados de la ecuación por $- \frac{7}{5}$ .

$- \frac{7}{5} \cdot (- \frac{5 c}{7}) = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4

Simplifica ambos lados de la ecuación.

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Paso 2.3.5.4.1

Simplifica el lado izquierdo.

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Paso 2.3.5.4.1.1

Simplifica $- \frac{7}{5} (- \frac{5 c}{7})$ .

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Paso 2.3.5.4.1.1.1

Cancela el factor común de $7$ .

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Paso 2.3.5.4.1.1.1.1

Mueve el signo menos inicial en $- \frac{7}{5}$ al numerador.

$\frac{- 7}{5} \cdot (- \frac{5 c}{7}) = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.1.2

Mueve el signo menos inicial en $- \frac{5 c}{7}$ al numerador.

$\frac{- 7}{5} \cdot \frac{- 5 c}{7} = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.1.3

Factoriza $7$ de $- 7$ .

$\frac{7 (- 1)}{5} \cdot \frac{- 5 c}{7} = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.1.4

Cancela el factor común.

$\frac{7 \cdot - 1}{5} \cdot \frac{- 5 c}{7} = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.1.5

Reescribe la expresión.

$\frac{- 1}{5} \cdot (- 5 c) = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$\frac{- 1}{5} \cdot (- 5 c) = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.2

Cancela el factor común de $5$ .

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Paso 2.3.5.4.1.1.2.1

Factoriza $5$ de $- 5 c$ .

$\frac{- 1}{5} \cdot (5 (- c)) = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.2.2

Cancela el factor común.

$\frac{- 1}{5} \cdot (5 (- c)) = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.2.3

Reescribe la expresión.

$c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.3

Multiplica.

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Paso 2.3.5.4.1.1.3.1

Multiplica $- 1$ por $- 1$ .

$1 c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.1.1.3.2

Multiplica $c$ por $1$ .

$c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = - \frac{7}{5} \cdot - 6.2\overline{809523}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.2

Simplifica el lado derecho.

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Paso 2.3.5.4.2.1

Simplifica $- \frac{7}{5} \cdot - 6.2\overline{809523}$ .

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Paso 2.3.5.4.2.1.1

Multiplica $- \frac{7}{5} \cdot - 6.2\overline{809523}$ .

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Paso 2.3.5.4.2.1.1.1

Multiplica $- 6.2\overline{809523}$ por $- 1$ .

$c = 6.2\overline{809523} (\frac{7}{5})$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.2.1.1.2

Combina $6.2\overline{809523}$ y $\frac{7}{5}$ .

$c = \frac{6.2\overline{809523} \cdot 7}{5}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.2.1.1.3

Multiplica $6.2\overline{809523}$ por $7$ .

$c = \frac{43.9\overline{6}}{5}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = \frac{43.9\overline{6}}{5}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.5.4.2.1.2

Divide $43.9\overline{6}$ por $5$ .

$c = 8.79\overline{3}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = 8.79\overline{3}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = 8.79\overline{3}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = 8.79\overline{3}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$c = 8.79\overline{3}$

$a = - 1.2\overline{095238} + \frac{c}{7}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6

Reemplaza todos los casos de $c$ por $8.79\overline{3}$ en cada ecuación.

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Paso 2.3.6.1

Reemplaza todos los casos de $c$ en $a = - 1.2\overline{095238} + \frac{c}{7}$ por $8.79\overline{3}$ .

$a = - 1.2\overline{095238} + \frac{8.79\overline{3}}{7}$

$c = 8.79\overline{3}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.2

Simplifica el lado derecho.

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Paso 2.3.6.2.1

Simplifica $- 1.2\overline{095238} + \frac{8.79\overline{3}}{7}$ .

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Paso 2.3.6.2.1.1

Divide $8.79\overline{3}$ por $7$ .

$a = - 1.2\overline{095238} + 1.25619047$

$c = 8.79\overline{3}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.2.1.2

Suma $- 1.2\overline{095238}$ y $1.25619047$ .

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.2 = 18.8\overline{428571} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.3

Reemplaza todos los casos de $c$ en $9.2 = 18.8\overline{428571} - \frac{8 c}{7}$ por $8.79\overline{3}$ .

$9.2 = 18.8\overline{428571} - \frac{8 (8.79\overline{3})}{7}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.4

Simplifica el lado derecho.

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Paso 2.3.6.4.1

Simplifica $18.8\overline{428571} - \frac{8 (8.79\overline{3})}{7}$ .

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Paso 2.3.6.4.1.1

Simplifica cada término.

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Paso 2.3.6.4.1.1.1

Multiplica $8$ por $8.79\overline{3}$ .

$9.2 = 18.8\overline{428571} - \frac{70.34666666}{7}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.4.1.1.2

Divide $70.34666666$ por $7$ .

$9.2 = 18.8\overline{428571} - 1 \cdot 10.0495238$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.4.1.1.3

Multiplica $- 1$ por $10.0495238$ .

$9.2 = 18.8\overline{428571} - 10.0495238$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 18.8\overline{428571} - 10.0495238$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.4.1.2

Resta $10.0495238$ de $18.8\overline{428571}$ .

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.5 = 20.\overline{285714} - \frac{9 c}{7}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.5

Reemplaza todos los casos de $c$ en $9.5 = 20.\overline{285714} - \frac{9 c}{7}$ por $8.79\overline{3}$ .

$9.5 = 20.\overline{285714} - \frac{9 (8.79\overline{3})}{7}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.6

Simplifica el lado derecho.

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Paso 2.3.6.6.1

Simplifica $20.\overline{285714} - \frac{9 (8.79\overline{3})}{7}$ .

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Paso 2.3.6.6.1.1

Simplifica cada término.

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Paso 2.3.6.6.1.1.1

Multiplica $9$ por $8.79\overline{3}$ .

$9.5 = 20.\overline{285714} - \frac{79.14}{7}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.6.1.1.2

Divide $79.14$ por $7$ .

$9.5 = 20.\overline{285714} - 1 \cdot 11.30571428$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.6.1.1.3

Multiplica $- 1$ por $11.30571428$ .

$9.5 = 20.\overline{285714} - 11.30571428$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 20.\overline{285714} - 11.30571428$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.6.1.2

Resta $11.30571428$ de $20.\overline{285714}$ .

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 19.3\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.7

Reemplaza todos los casos de $c$ en $9.9 = 19.3\overline{095238} - \frac{8 c}{7}$ por $8.79\overline{3}$ .

$9.9 = 19.3\overline{095238} - \frac{8 (8.79\overline{3})}{7}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.8

Simplifica el lado derecho.

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Paso 2.3.6.8.1

Simplifica $19.3\overline{095238} - \frac{8 (8.79\overline{3})}{7}$ .

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Paso 2.3.6.8.1.1

Simplifica cada término.

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Paso 2.3.6.8.1.1.1

Multiplica $8$ por $8.79\overline{3}$ .

$9.9 = 19.3\overline{095238} - \frac{70.34666666}{7}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.8.1.1.2

Divide $70.34666666$ por $7$ .

$9.9 = 19.3\overline{095238} - 1 \cdot 10.0495238$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.8.1.1.3

Multiplica $- 1$ por $10.0495238$ .

$9.9 = 19.3\overline{095238} - 10.0495238$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 19.3\overline{095238} - 10.0495238$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.8.1.2

Resta $10.0495238$ de $19.3\overline{095238}$ .

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$9.9 = 15.9\overline{142857} - \frac{5 c}{7}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.9

Reemplaza todos los casos de $c$ en $9.9 = 15.9\overline{142857} - \frac{5 c}{7}$ por $8.79\overline{3}$ .

$9.9 = 15.9\overline{142857} - \frac{5 (8.79\overline{3})}{7}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.10

Simplifica el lado derecho.

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Paso 2.3.6.10.1

Simplifica $15.9\overline{142857} - \frac{5 (8.79\overline{3})}{7}$ .

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Paso 2.3.6.10.1.1

Simplifica cada término.

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Paso 2.3.6.10.1.1.1

Multiplica $5$ por $8.79\overline{3}$ .

$9.9 = 15.9\overline{142857} - \frac{43.9\overline{6}}{7}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.10.1.1.2

Divide $43.9\overline{6}$ por $7$ .

$9.9 = 15.9\overline{142857} - 1 \cdot 6.2\overline{809523}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.10.1.1.3

Multiplica $- 1$ por $6.2\overline{809523}$ .

$9.9 = 15.9\overline{142857} - 6.2\overline{809523}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 15.9\overline{142857} - 6.2\overline{809523}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.10.1.2

Resta $6.2\overline{809523}$ de $15.9\overline{142857}$ .

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - \frac{8 c}{7}$

Paso 2.3.6.11

Reemplaza todos los casos de $c$ en $b = 9.9\overline{095238} - \frac{8 c}{7}$ por $8.79\overline{3}$ .

$b = 9.9\overline{095238} - \frac{8 (8.79\overline{3})}{7}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

Paso 2.3.6.12

Simplifica el lado derecho.

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Paso 2.3.6.12.1

Simplifica $9.9\overline{095238} - \frac{8 (8.79\overline{3})}{7}$ .

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Paso 2.3.6.12.1.1

Simplifica cada término.

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Paso 2.3.6.12.1.1.1

Multiplica $8$ por $8.79\overline{3}$ .

$b = 9.9\overline{095238} - \frac{70.34666666}{7}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

Paso 2.3.6.12.1.1.2

Divide $70.34666666$ por $7$ .

$b = 9.9\overline{095238} - 1 \cdot 10.0495238$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

Paso 2.3.6.12.1.1.3

Multiplica $- 1$ por $10.0495238$ .

$b = 9.9\overline{095238} - 10.0495238$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = 9.9\overline{095238} - 10.0495238$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

Paso 2.3.6.12.1.2

Resta $10.0495238$ de $9.9\overline{095238}$ .

$b = - 0.13\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = - 0.13\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = - 0.13\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

$b = - 0.13\overline{9}$

$9.9 = 9.6\overline{3}$

$9.9 = 9.25\overline{9}$

$9.5 = 8.97\overline{9}$

$9.2 = 8.79\overline{3}$

$a = 0.04\overline{6}$

$c = 8.79\overline{3}$

Paso 2.3.7

Como $9.9 = 9.6\overline{3}$ no es verdadera, no hay una solución.

No hay solución

Paso 2.4

Calcula el valor de $y$ con cada valor de $x$ en la tabla y compara este valor con el valor de $y$ dado en la tabla.

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Paso 2.4.1

Calcula el valor de $y$ tal que $y = a x^{2} + b$ cuando $a = 0$ , $b = 0$ , $c = 0$ y $x = 1$ .

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Paso 2.4.1.1

Simplifica cada término.

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Paso 2.4.1.1.1

Uno elevado a cualquier potencia es uno.

$y = 0 \cdot 1 + (0) \cdot (1) + 0$

Paso 2.4.1.1.2

Multiplica $0$ por $1$ .

$y = 0 + (0) \cdot (1) + 0$

Paso 2.4.1.1.3

Multiplica $0$ por $1$ .

$y = 0 + 0 + 0$

Paso 2.4.1.2

Simplifica mediante la adición de números.

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Paso 2.4.1.2.1

Suma $0$ y $0$ .

$y = 0 + 0$

Paso 2.4.1.2.2

Suma $0$ y $0$ .

$y = 0$

Paso 2.4.2

Si la tabla tiene una regla de la función cuadrática, $y = y$ para el valor correspondiente de $x$ , $x = 1$ . Esta comprobación no pasa, ya que $y = 0$ y $y = 8.7$ . La regla de la función no puede ser cuadrática.

$0 \neq 8.7$

Paso 2.4.3

Como $y \neq y$ para los valores $x$ correspondientes, la función no es cuadrática.

La función no es cuadrática.

Paso 3

Comprueba si la regla de la función es cúbica.

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Paso 3.1

Para determinar si la tabla sigue una regla de la función, comprueba si la regla de la función podría seguir la forma $y = a x^{3} + b x^{2} + c x + d$ .

$y = a x^{3} + b x^{2} + c x + d$

Paso 3.2

Construye un conjunto de $4$ ecuaciones a partir de la tabla de modo que $y = a x^{3} + b x^{2} + c x + d$ .

Paso 3.3

Calcula los valores de $a$ , $b$ , $c$ y $d$ .

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Paso 3.3.1

Resuelve $a$ en $8.7 = a + b + c + d$ .

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Paso 3.3.1.1

Reescribe la ecuación como $a + b + c + d = 8.7$ .

$a + b + c + d = 8.7$

$8.7 = a \cdot 2^{3} + b + c + d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.1.2

Mueve todos los términos que no contengan $a$ al lado derecho de la ecuación.

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Paso 3.3.1.2.1

Resta $b$ de ambos lados de la ecuación.

$a + c + d = 8.7 - b$

$8.7 = a \cdot 2^{3} + b + c + d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.1.2.2

Resta $c$ de ambos lados de la ecuación.

$a + d = 8.7 - b - c$

$8.7 = a \cdot 2^{3} + b + c + d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.1.2.3

Resta $d$ de ambos lados de la ecuación.

$a = 8.7 - b - c - d$

$8.7 = a \cdot 2^{3} + b + c + d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$a = 8.7 - b - c - d$

$8.7 = a \cdot 2^{3} + b + c + d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$a = 8.7 - b - c - d$

$8.7 = a \cdot 2^{3} + b + c + d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2

Reemplaza todos los casos de $a$ por $8.7 - b - c - d$ en cada ecuación.

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Paso 3.3.2.1

Reemplaza todos los casos de $a$ en $8.7 = a \cdot 2^{3} + b + c + d$ por $8.7 - b - c - d$ .

$8.7 = (8.7 - b - c - d) \cdot 2^{3} + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2

Simplifica el lado derecho.

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Paso 3.3.2.2.1

Simplifica $(8.7 - b - c - d) \cdot 2^{3} + b + c + d$ .

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Paso 3.3.2.2.1.1

Simplifica cada término.

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Paso 3.3.2.2.1.1.1

Eleva $2$ a la potencia de $3$ .

$8.7 = (8.7 - b - c - d) \cdot 8 + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.1.2

Aplica la propiedad distributiva.

$8.7 = 8.7 \cdot 8 - b \cdot 8 - c \cdot 8 - d \cdot 8 + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.1.3

Simplifica.

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Paso 3.3.2.2.1.1.3.1

Multiplica $8.7$ por $8$ .

$8.7 = 69.6 - b \cdot 8 - c \cdot 8 - d \cdot 8 + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.1.3.2

Multiplica $8$ por $- 1$ .

$8.7 = 69.6 - 8 b - c \cdot 8 - d \cdot 8 + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.1.3.3

Multiplica $8$ por $- 1$ .

$8.7 = 69.6 - 8 b - 8 c - d \cdot 8 + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.1.3.4

Multiplica $8$ por $- 1$ .

$8.7 = 69.6 - 8 b - 8 c - 8 d + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$8.7 = 69.6 - 8 b - 8 c - 8 d + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$8.7 = 69.6 - 8 b - 8 c - 8 d + b + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.2

Simplifica mediante la adición de términos.

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Paso 3.3.2.2.1.2.1

Suma $- 8 b$ y $b$ .

$8.7 = 69.6 - 7 b - 8 c - 8 d + c + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.2.2

Suma $- 8 c$ y $c$ .

$8.7 = 69.6 - 7 b - 7 c - 8 d + d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.2.1.2.3

Suma $- 8 d$ y $d$ .

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = a \cdot 3^{3} + b + c + d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.3

Reemplaza todos los casos de $a$ en $9.2 = a \cdot 3^{3} + b + c + d$ por $8.7 - b - c - d$ .

$9.2 = (8.7 - b - c - d) \cdot 3^{3} + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4

Simplifica el lado derecho.

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Paso 3.3.2.4.1

Simplifica $(8.7 - b - c - d) \cdot 3^{3} + b + c + d$ .

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Paso 3.3.2.4.1.1

Simplifica cada término.

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Paso 3.3.2.4.1.1.1

Eleva $3$ a la potencia de $3$ .

$9.2 = (8.7 - b - c - d) \cdot 27 + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.1.2

Aplica la propiedad distributiva.

$9.2 = 8.7 \cdot 27 - b \cdot 27 - c \cdot 27 - d \cdot 27 + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.1.3

Simplifica.

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Paso 3.3.2.4.1.1.3.1

Multiplica $8.7$ por $27$ .

$9.2 = 234.9 - b \cdot 27 - c \cdot 27 - d \cdot 27 + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.1.3.2

Multiplica $27$ por $- 1$ .

$9.2 = 234.9 - 27 b - c \cdot 27 - d \cdot 27 + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.1.3.3

Multiplica $27$ por $- 1$ .

$9.2 = 234.9 - 27 b - 27 c - d \cdot 27 + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.1.3.4

Multiplica $27$ por $- 1$ .

$9.2 = 234.9 - 27 b - 27 c - 27 d + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.2 = 234.9 - 27 b - 27 c - 27 d + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.2 = 234.9 - 27 b - 27 c - 27 d + b + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.2

Simplifica mediante la adición de términos.

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Paso 3.3.2.4.1.2.1

Suma $- 27 b$ y $b$ .

$9.2 = 234.9 - 26 b - 27 c - 27 d + c + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.2.2

Suma $- 27 c$ y $c$ .

$9.2 = 234.9 - 26 b - 26 c - 27 d + d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.4.1.2.3

Suma $- 27 d$ y $d$ .

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = a \cdot 4^{3} + b + c + d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.5

Reemplaza todos los casos de $a$ en $9.5 = a \cdot 4^{3} + b + c + d$ por $8.7 - b - c - d$ .

$9.5 = (8.7 - b - c - d) \cdot 4^{3} + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6

Simplifica el lado derecho.

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Paso 3.3.2.6.1

Simplifica $(8.7 - b - c - d) \cdot 4^{3} + b + c + d$ .

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Paso 3.3.2.6.1.1

Simplifica cada término.

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Paso 3.3.2.6.1.1.1

Eleva $4$ a la potencia de $3$ .

$9.5 = (8.7 - b - c - d) \cdot 64 + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.1.2

Aplica la propiedad distributiva.

$9.5 = 8.7 \cdot 64 - b \cdot 64 - c \cdot 64 - d \cdot 64 + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.1.3

Simplifica.

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Paso 3.3.2.6.1.1.3.1

Multiplica $8.7$ por $64$ .

$9.5 = 556.8 - b \cdot 64 - c \cdot 64 - d \cdot 64 + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.1.3.2

Multiplica $64$ por $- 1$ .

$9.5 = 556.8 - 64 b - c \cdot 64 - d \cdot 64 + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.1.3.3

Multiplica $64$ por $- 1$ .

$9.5 = 556.8 - 64 b - 64 c - d \cdot 64 + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.1.3.4

Multiplica $64$ por $- 1$ .

$9.5 = 556.8 - 64 b - 64 c - 64 d + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.5 = 556.8 - 64 b - 64 c - 64 d + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.5 = 556.8 - 64 b - 64 c - 64 d + b + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.2

Simplifica mediante la adición de términos.

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Paso 3.3.2.6.1.2.1

Suma $- 64 b$ y $b$ .

$9.5 = 556.8 - 63 b - 64 c - 64 d + c + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.2.2

Suma $- 64 c$ y $c$ .

$9.5 = 556.8 - 63 b - 63 c - 64 d + d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.6.1.2.3

Suma $- 64 d$ y $d$ .

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 5^{3} + b + c + d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.7

Reemplaza todos los casos de $a$ en $9.9 = a \cdot 5^{3} + b + c + d$ por $8.7 - b - c - d$ .

$9.9 = (8.7 - b - c - d) \cdot 5^{3} + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8

Simplifica el lado derecho.

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Paso 3.3.2.8.1

Simplifica $(8.7 - b - c - d) \cdot 5^{3} + b + c + d$ .

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Paso 3.3.2.8.1.1

Simplifica cada término.

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Paso 3.3.2.8.1.1.1

Eleva $5$ a la potencia de $3$ .

$9.9 = (8.7 - b - c - d) \cdot 125 + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.1.2

Aplica la propiedad distributiva.

$9.9 = 8.7 \cdot 125 - b \cdot 125 - c \cdot 125 - d \cdot 125 + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.1.3

Simplifica.

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Paso 3.3.2.8.1.1.3.1

Multiplica $8.7$ por $125$ .

$9.9 = 1087.5 - b \cdot 125 - c \cdot 125 - d \cdot 125 + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.1.3.2

Multiplica $125$ por $- 1$ .

$9.9 = 1087.5 - 125 b - c \cdot 125 - d \cdot 125 + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.1.3.3

Multiplica $125$ por $- 1$ .

$9.9 = 1087.5 - 125 b - 125 c - d \cdot 125 + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.1.3.4

Multiplica $125$ por $- 1$ .

$9.9 = 1087.5 - 125 b - 125 c - 125 d + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1087.5 - 125 b - 125 c - 125 d + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1087.5 - 125 b - 125 c - 125 d + b + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.2

Simplifica mediante la adición de términos.

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Paso 3.3.2.8.1.2.1

Suma $- 125 b$ y $b$ .

$9.9 = 1087.5 - 124 b - 125 c - 125 d + c + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.2.2

Suma $- 125 c$ y $c$ .

$9.9 = 1087.5 - 124 b - 124 c - 125 d + d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.8.1.2.3

Suma $- 125 d$ y $d$ .

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = a \cdot 6^{3} + b + c + d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.9

Reemplaza todos los casos de $a$ en $9.9 = a \cdot 6^{3} + b + c + d$ por $8.7 - b - c - d$ .

$9.9 = (8.7 - b - c - d) \cdot 6^{3} + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10

Simplifica el lado derecho.

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Paso 3.3.2.10.1

Simplifica $(8.7 - b - c - d) \cdot 6^{3} + b + c + d$ .

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Paso 3.3.2.10.1.1

Simplifica cada término.

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Paso 3.3.2.10.1.1.1

Eleva $6$ a la potencia de $3$ .

$9.9 = (8.7 - b - c - d) \cdot 216 + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.1.2

Aplica la propiedad distributiva.

$9.9 = 8.7 \cdot 216 - b \cdot 216 - c \cdot 216 - d \cdot 216 + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.1.3

Simplifica.

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Paso 3.3.2.10.1.1.3.1

Multiplica $8.7$ por $216$ .

$9.9 = 1879.2 - b \cdot 216 - c \cdot 216 - d \cdot 216 + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.1.3.2

Multiplica $216$ por $- 1$ .

$9.9 = 1879.2 - 216 b - c \cdot 216 - d \cdot 216 + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.1.3.3

Multiplica $216$ por $- 1$ .

$9.9 = 1879.2 - 216 b - 216 c - d \cdot 216 + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.1.3.4

Multiplica $216$ por $- 1$ .

$9.9 = 1879.2 - 216 b - 216 c - 216 d + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1879.2 - 216 b - 216 c - 216 d + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1879.2 - 216 b - 216 c - 216 d + b + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.2

Simplifica mediante la adición de términos.

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Paso 3.3.2.10.1.2.1

Suma $- 216 b$ y $b$ .

$9.9 = 1879.2 - 215 b - 216 c - 216 d + c + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.2.2

Suma $- 216 c$ y $c$ .

$9.9 = 1879.2 - 215 b - 215 c - 216 d + d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.10.1.2.3

Suma $- 216 d$ y $d$ .

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = a \cdot 7^{3} + b + c + d$

Paso 3.3.2.11

Reemplaza todos los casos de $a$ en $10.1 = a \cdot 7^{3} + b + c + d$ por $8.7 - b - c - d$ .

$10.1 = (8.7 - b - c - d) \cdot 7^{3} + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12

Simplifica el lado derecho.

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Paso 3.3.2.12.1

Simplifica $(8.7 - b - c - d) \cdot 7^{3} + b + c + d$ .

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Paso 3.3.2.12.1.1

Simplifica cada término.

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Paso 3.3.2.12.1.1.1

Eleva $7$ a la potencia de $3$ .

$10.1 = (8.7 - b - c - d) \cdot 343 + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.1.2

Aplica la propiedad distributiva.

$10.1 = 8.7 \cdot 343 - b \cdot 343 - c \cdot 343 - d \cdot 343 + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.1.3

Simplifica.

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Paso 3.3.2.12.1.1.3.1

Multiplica $8.7$ por $343$ .

$10.1 = 2984.1 - b \cdot 343 - c \cdot 343 - d \cdot 343 + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.1.3.2

Multiplica $343$ por $- 1$ .

$10.1 = 2984.1 - 343 b - c \cdot 343 - d \cdot 343 + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.1.3.3

Multiplica $343$ por $- 1$ .

$10.1 = 2984.1 - 343 b - 343 c - d \cdot 343 + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.1.3.4

Multiplica $343$ por $- 1$ .

$10.1 = 2984.1 - 343 b - 343 c - 343 d + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = 2984.1 - 343 b - 343 c - 343 d + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = 2984.1 - 343 b - 343 c - 343 d + b + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.2

Simplifica mediante la adición de términos.

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Paso 3.3.2.12.1.2.1

Suma $- 343 b$ y $b$ .

$10.1 = 2984.1 - 342 b - 343 c - 343 d + c + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.2.2

Suma $- 343 c$ y $c$ .

$10.1 = 2984.1 - 342 b - 342 c - 343 d + d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.2.12.1.2.3

Suma $- 343 d$ y $d$ .

$10.1 = 2984.1 - 342 b - 342 c - 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = 2984.1 - 342 b - 342 c - 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = 2984.1 - 342 b - 342 c - 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = 2984.1 - 342 b - 342 c - 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$10.1 = 2984.1 - 342 b - 342 c - 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3

Resuelve $b$ en $10.1 = 2984.1 - 342 b - 342 c - 342 d$ .

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Paso 3.3.3.1

Reescribe la ecuación como $2984.1 - 342 b - 342 c - 342 d = 10.1$ .

$2984.1 - 342 b - 342 c - 342 d = 10.1$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.2

Mueve todos los términos que no contengan $b$ al lado derecho de la ecuación.

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Paso 3.3.3.2.1

Resta $2984.1$ de ambos lados de la ecuación.

$- 342 b - 342 c - 342 d = 10.1 - 2984.1$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.2.2

Suma $342 c$ a ambos lados de la ecuación.

$- 342 b - 342 d = 10.1 - 2984.1 + 342 c$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.2.3

Suma $342 d$ a ambos lados de la ecuación.

$- 342 b = 10.1 - 2984.1 + 342 c + 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.2.4

Resta $2984.1$ de $10.1$ .

$- 342 b = - 2974 + 342 c + 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$- 342 b = - 2974 + 342 c + 342 d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3

Divide cada término en $- 342 b = - 2974 + 342 c + 342 d$ por $- 342$ y simplifica.

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Paso 3.3.3.3.1

Divide cada término en $- 342 b = - 2974 + 342 c + 342 d$ por $- 342$ .

$\frac{- 342 b}{- 342} = \frac{- 2974}{- 342} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.2

Simplifica el lado izquierdo.

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Paso 3.3.3.3.2.1

Cancela el factor común de $- 342$ .

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Paso 3.3.3.3.2.1.1

Cancela el factor común.

$\frac{- 342 b}{- 342} = \frac{- 2974}{- 342} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.2.1.2

Divide $b$ por $1$ .

$b = \frac{- 2974}{- 342} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{- 2974}{- 342} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{- 2974}{- 342} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3

Simplifica el lado derecho.

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Paso 3.3.3.3.3.1

Simplifica cada término.

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Paso 3.3.3.3.3.1.1

Cancela el factor común de $- 2974$ y $- 342$ .

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Paso 3.3.3.3.3.1.1.1

Factoriza $- 2$ de $- 2974$ .

$b = \frac{- 2 \cdot 1487}{- 342} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.1.2

Cancela los factores comunes.

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Paso 3.3.3.3.3.1.1.2.1

Factoriza $- 2$ de $- 342$ .

$b = \frac{- 2 \cdot 1487}{- 2 \cdot 171} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.1.2.2

Cancela el factor común.

$b = \frac{- 2 \cdot 1487}{- 2 \cdot 171} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.1.2.3

Reescribe la expresión.

$b = \frac{1487}{171} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} + \frac{342 c}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.2

Cancela el factor común de $342$ y $- 342$ .

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Paso 3.3.3.3.3.1.2.1

Factoriza $342$ de $342 c$ .

$b = \frac{1487}{171} + \frac{342 (c)}{- 342} + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.2.2

Mueve el negativo del denominador de $\frac{c}{- 1}$ .

$b = \frac{1487}{171} - 1 \cdot c + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} - 1 \cdot c + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.3

Reescribe $- 1 \cdot c$ como $- c$ .

$b = \frac{1487}{171} - c + \frac{342 d}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.4

Cancela el factor común de $342$ y $- 342$ .

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Paso 3.3.3.3.3.1.4.1

Factoriza $342$ de $342 d$ .

$b = \frac{1487}{171} - c + \frac{342 (d)}{- 342}$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.4.2

Mueve el negativo del denominador de $\frac{d}{- 1}$ .

$b = \frac{1487}{171} - c - 1 \cdot d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} - c - 1 \cdot d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.3.3.3.1.5

Reescribe $- 1 \cdot d$ como $- d$ .

$b = \frac{1487}{171} - c - d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1879.2 - 215 b - 215 c - 215 d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4

Reemplaza todos los casos de $b$ por $\frac{1487}{171} - c - d$ en cada ecuación.

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Paso 3.3.4.1

Reemplaza todos los casos de $b$ en $9.9 = 1879.2 - 215 b - 215 c - 215 d$ por $\frac{1487}{171} - c - d$ .

$9.9 = 1879.2 - 215 (\frac{1487}{171} - c - d) - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2

Simplifica el lado derecho.

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Paso 3.3.4.2.1

Simplifica $1879.2 - 215 (\frac{1487}{171} - c - d) - 215 c - 215 d$ .

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Paso 3.3.4.2.1.1

Simplifica cada término.

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Paso 3.3.4.2.1.1.1

Aplica la propiedad distributiva.

$9.9 = 1879.2 - 215 (\frac{1487}{171}) - 215 (- c) - 215 (- d) - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.1.2

Simplifica.

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Paso 3.3.4.2.1.1.2.1

Multiplica $- 215 (\frac{1487}{171})$ .

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Paso 3.3.4.2.1.1.2.1.1

Combina $- 215$ y $\frac{1487}{171}$ .

$9.9 = 1879.2 + \frac{- 215 \cdot 1487}{171} - 215 (- c) - 215 (- d) - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.1.2.1.2

Multiplica $- 215$ por $1487$ .

$9.9 = 1879.2 + \frac{- 319705}{171} - 215 (- c) - 215 (- d) - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1879.2 + \frac{- 319705}{171} - 215 (- c) - 215 (- d) - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.1.2.2

Multiplica $- 1$ por $- 215$ .

$9.9 = 1879.2 + \frac{- 319705}{171} + 215 c - 215 (- d) - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.1.2.3

Multiplica $- 1$ por $- 215$ .

$9.9 = 1879.2 + \frac{- 319705}{171} + 215 c + 215 d - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1879.2 + \frac{- 319705}{171} + 215 c + 215 d - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.1.3

Mueve el negativo al frente de la fracción.

$9.9 = 1879.2 - \frac{319705}{171} + 215 c + 215 d - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1879.2 - \frac{319705}{171} + 215 c + 215 d - 215 c - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.2

Combina los términos opuestos en $1879.2 - \frac{319705}{171} + 215 c + 215 d - 215 c - 215 d$ .

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Paso 3.3.4.2.1.2.1

Resta $215 c$ de $215 c$ .

$9.9 = 1879.2 - \frac{319705}{171} + 215 d + 0 - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.2.2

Suma $1879.2 - \frac{319705}{171} + 215 d$ y $0$ .

$9.9 = 1879.2 - \frac{319705}{171} + 215 d - 215 d$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.2.3

Resta $215 d$ de $215 d$ .

$9.9 = 1879.2 - \frac{319705}{171} + 0$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.2.4

Suma $1879.2 - \frac{319705}{171}$ y $0$ .

$9.9 = 1879.2 - \frac{319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1879.2 - \frac{319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.3

Para escribir $1879.2$ como una fracción con un denominador común, multiplica por $\frac{171}{171}$ .

$9.9 = 1879.2 \cdot \frac{171}{171} - \frac{319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.4

Combina fracciones.

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Paso 3.3.4.2.1.4.1

Combina $1879.2$ y $\frac{171}{171}$ .

$9.9 = \frac{1879.2 \cdot 171}{171} - \frac{319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.4.2

Combina los numeradores sobre el denominador común.

$9.9 = \frac{1879.2 \cdot 171 - 319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = \frac{1879.2 \cdot 171 - 319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.5

Simplifica el numerador.

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Paso 3.3.4.2.1.5.1

Multiplica $1879.2$ por $171$ .

$9.9 = \frac{321343.2 - 319705}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.5.2

Resta $319705$ de $321343.2$ .

$9.9 = \frac{1638.2}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = \frac{1638.2}{171}$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.2.1.6

Divide $1638.2$ por $171$ .

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.9 = 1087.5 - 124 b - 124 c - 124 d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.3

Reemplaza todos los casos de $b$ en $9.9 = 1087.5 - 124 b - 124 c - 124 d$ por $\frac{1487}{171} - c - d$ .

$9.9 = 1087.5 - 124 (\frac{1487}{171} - c - d) - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4

Simplifica el lado derecho.

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Paso 3.3.4.4.1

Simplifica $1087.5 - 124 (\frac{1487}{171} - c - d) - 124 c - 124 d$ .

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Paso 3.3.4.4.1.1

Simplifica cada término.

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Paso 3.3.4.4.1.1.1

Aplica la propiedad distributiva.

$9.9 = 1087.5 - 124 (\frac{1487}{171}) - 124 (- c) - 124 (- d) - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.1.2

Simplifica.

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Paso 3.3.4.4.1.1.2.1

Multiplica $- 124 (\frac{1487}{171})$ .

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Paso 3.3.4.4.1.1.2.1.1

Combina $- 124$ y $\frac{1487}{171}$ .

$9.9 = 1087.5 + \frac{- 124 \cdot 1487}{171} - 124 (- c) - 124 (- d) - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.1.2.1.2

Multiplica $- 124$ por $1487$ .

$9.9 = 1087.5 + \frac{- 184388}{171} - 124 (- c) - 124 (- d) - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1087.5 + \frac{- 184388}{171} - 124 (- c) - 124 (- d) - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.1.2.2

Multiplica $- 1$ por $- 124$ .

$9.9 = 1087.5 + \frac{- 184388}{171} + 124 c - 124 (- d) - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.1.2.3

Multiplica $- 1$ por $- 124$ .

$9.9 = 1087.5 + \frac{- 184388}{171} + 124 c + 124 d - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1087.5 + \frac{- 184388}{171} + 124 c + 124 d - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.1.3

Mueve el negativo al frente de la fracción.

$9.9 = 1087.5 - \frac{184388}{171} + 124 c + 124 d - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1087.5 - \frac{184388}{171} + 124 c + 124 d - 124 c - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.2

Combina los términos opuestos en $1087.5 - \frac{184388}{171} + 124 c + 124 d - 124 c - 124 d$ .

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Paso 3.3.4.4.1.2.1

Resta $124 c$ de $124 c$ .

$9.9 = 1087.5 - \frac{184388}{171} + 124 d + 0 - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.2.2

Suma $1087.5 - \frac{184388}{171} + 124 d$ y $0$ .

$9.9 = 1087.5 - \frac{184388}{171} + 124 d - 124 d$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.2.3

Resta $124 d$ de $124 d$ .

$9.9 = 1087.5 - \frac{184388}{171} + 0$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.2.4

Suma $1087.5 - \frac{184388}{171}$ y $0$ .

$9.9 = 1087.5 - \frac{184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 1087.5 - \frac{184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.3

Para escribir $1087.5$ como una fracción con un denominador común, multiplica por $\frac{171}{171}$ .

$9.9 = 1087.5 \cdot \frac{171}{171} - \frac{184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.4

Combina fracciones.

Toca para ver más pasos...

Paso 3.3.4.4.1.4.1

Combina $1087.5$ y $\frac{171}{171}$ .

$9.9 = \frac{1087.5 \cdot 171}{171} - \frac{184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.4.2

Combina los numeradores sobre el denominador común.

$9.9 = \frac{1087.5 \cdot 171 - 184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = \frac{1087.5 \cdot 171 - 184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.5

Simplifica el numerador.

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Paso 3.3.4.4.1.5.1

Multiplica $1087.5$ por $171$ .

$9.9 = \frac{185962.5 - 184388}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.5.2

Resta $184388$ de $185962.5$ .

$9.9 = \frac{1574.5}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = \frac{1574.5}{171}$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.4.1.6

Divide $1574.5$ por $171$ .

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.5 = 556.8 - 63 b - 63 c - 63 d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.5

Reemplaza todos los casos de $b$ en $9.5 = 556.8 - 63 b - 63 c - 63 d$ por $\frac{1487}{171} - c - d$ .

$9.5 = 556.8 - 63 (\frac{1487}{171} - c - d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6

Simplifica el lado derecho.

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Paso 3.3.4.6.1

Simplifica $556.8 - 63 (\frac{1487}{171} - c - d) - 63 c - 63 d$ .

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Paso 3.3.4.6.1.1

Simplifica cada término.

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Paso 3.3.4.6.1.1.1

Aplica la propiedad distributiva.

$9.5 = 556.8 - 63 (\frac{1487}{171}) - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2

Simplifica.

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Paso 3.3.4.6.1.1.2.1

Cancela el factor común de $9$ .

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Paso 3.3.4.6.1.1.2.1.1

Factoriza $9$ de $- 63$ .

$9.5 = 556.8 + 9 (- 7) (\frac{1487}{171}) - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.1.2

Factoriza $9$ de $171$ .

$9.5 = 556.8 + 9 \cdot (- 7 \frac{1487}{9 \cdot 19}) - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.1.3

Cancela el factor común.

$9.5 = 556.8 + 9 \cdot (- 7 \frac{1487}{9 \cdot 19}) - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.1.4

Reescribe la expresión.

$9.5 = 556.8 - 7 (\frac{1487}{19}) - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = 556.8 - 7 (\frac{1487}{19}) - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.2

Combina $- 7$ y $\frac{1487}{19}$ .

$9.5 = 556.8 + \frac{- 7 \cdot 1487}{19} - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.3

Multiplica $- 7$ por $1487$ .

$9.5 = 556.8 + \frac{- 10409}{19} - 63 (- c) - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.4

Multiplica $- 1$ por $- 63$ .

$9.5 = 556.8 + \frac{- 10409}{19} + 63 c - 63 (- d) - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.2.5

Multiplica $- 1$ por $- 63$ .

$9.5 = 556.8 + \frac{- 10409}{19} + 63 c + 63 d - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = 556.8 + \frac{- 10409}{19} + 63 c + 63 d - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.1.3

Mueve el negativo al frente de la fracción.

$9.5 = 556.8 - \frac{10409}{19} + 63 c + 63 d - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = 556.8 - \frac{10409}{19} + 63 c + 63 d - 63 c - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.2

Combina los términos opuestos en $556.8 - \frac{10409}{19} + 63 c + 63 d - 63 c - 63 d$ .

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Paso 3.3.4.6.1.2.1

Resta $63 c$ de $63 c$ .

$9.5 = 556.8 - \frac{10409}{19} + 63 d + 0 - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.2.2

Suma $556.8 - \frac{10409}{19} + 63 d$ y $0$ .

$9.5 = 556.8 - \frac{10409}{19} + 63 d - 63 d$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.2.3

Resta $63 d$ de $63 d$ .

$9.5 = 556.8 - \frac{10409}{19} + 0$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.2.4

Suma $556.8 - \frac{10409}{19}$ y $0$ .

$9.5 = 556.8 - \frac{10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = 556.8 - \frac{10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.3

Para escribir $556.8$ como una fracción con un denominador común, multiplica por $\frac{19}{19}$ .

$9.5 = 556.8 \cdot \frac{19}{19} - \frac{10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.4

Combina fracciones.

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Paso 3.3.4.6.1.4.1

Combina $556.8$ y $\frac{19}{19}$ .

$9.5 = \frac{556.8 \cdot 19}{19} - \frac{10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.4.2

Combina los numeradores sobre el denominador común.

$9.5 = \frac{556.8 \cdot 19 - 10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = \frac{556.8 \cdot 19 - 10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.5

Simplifica el numerador.

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Paso 3.3.4.6.1.5.1

Multiplica $556.8$ por $19$ .

$9.5 = \frac{10579.2 - 10409}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.5.2

Resta $10409$ de $10579.2$ .

$9.5 = \frac{170.2}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = \frac{170.2}{19}$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.6.1.6

Divide $170.2$ por $19$ .

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$9.2 = 234.9 - 26 b - 26 c - 26 d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.7

Reemplaza todos los casos de $b$ en $9.2 = 234.9 - 26 b - 26 c - 26 d$ por $\frac{1487}{171} - c - d$ .

$9.2 = 234.9 - 26 (\frac{1487}{171} - c - d) - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8

Simplifica el lado derecho.

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Paso 3.3.4.8.1

Simplifica $234.9 - 26 (\frac{1487}{171} - c - d) - 26 c - 26 d$ .

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Paso 3.3.4.8.1.1

Simplifica cada término.

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Paso 3.3.4.8.1.1.1

Aplica la propiedad distributiva.

$9.2 = 234.9 - 26 (\frac{1487}{171}) - 26 (- c) - 26 (- d) - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.1.2

Simplifica.

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Paso 3.3.4.8.1.1.2.1

Multiplica $- 26 (\frac{1487}{171})$ .

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Paso 3.3.4.8.1.1.2.1.1

Combina $- 26$ y $\frac{1487}{171}$ .

$9.2 = 234.9 + \frac{- 26 \cdot 1487}{171} - 26 (- c) - 26 (- d) - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.1.2.1.2

Multiplica $- 26$ por $1487$ .

$9.2 = 234.9 + \frac{- 38662}{171} - 26 (- c) - 26 (- d) - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = 234.9 + \frac{- 38662}{171} - 26 (- c) - 26 (- d) - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.1.2.2

Multiplica $- 1$ por $- 26$ .

$9.2 = 234.9 + \frac{- 38662}{171} + 26 c - 26 (- d) - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.1.2.3

Multiplica $- 1$ por $- 26$ .

$9.2 = 234.9 + \frac{- 38662}{171} + 26 c + 26 d - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = 234.9 + \frac{- 38662}{171} + 26 c + 26 d - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.1.3

Mueve el negativo al frente de la fracción.

$9.2 = 234.9 - \frac{38662}{171} + 26 c + 26 d - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = 234.9 - \frac{38662}{171} + 26 c + 26 d - 26 c - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.2

Combina los términos opuestos en $234.9 - \frac{38662}{171} + 26 c + 26 d - 26 c - 26 d$ .

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Paso 3.3.4.8.1.2.1

Resta $26 c$ de $26 c$ .

$9.2 = 234.9 - \frac{38662}{171} + 26 d + 0 - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.2.2

Suma $234.9 - \frac{38662}{171} + 26 d$ y $0$ .

$9.2 = 234.9 - \frac{38662}{171} + 26 d - 26 d$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.2.3

Resta $26 d$ de $26 d$ .

$9.2 = 234.9 - \frac{38662}{171} + 0$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.2.4

Suma $234.9 - \frac{38662}{171}$ y $0$ .

$9.2 = 234.9 - \frac{38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = 234.9 - \frac{38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.3

Para escribir $234.9$ como una fracción con un denominador común, multiplica por $\frac{171}{171}$ .

$9.2 = 234.9 \cdot \frac{171}{171} - \frac{38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.4

Combina fracciones.

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Paso 3.3.4.8.1.4.1

Combina $234.9$ y $\frac{171}{171}$ .

$9.2 = \frac{234.9 \cdot 171}{171} - \frac{38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.4.2

Combina los numeradores sobre el denominador común.

$9.2 = \frac{234.9 \cdot 171 - 38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = \frac{234.9 \cdot 171 - 38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.5

Simplifica el numerador.

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Paso 3.3.4.8.1.5.1

Multiplica $234.9$ por $171$ .

$9.2 = \frac{40167.9 - 38662}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.5.2

Resta $38662$ de $40167.9$ .

$9.2 = \frac{1505.9}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = \frac{1505.9}{171}$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.8.1.6

Divide $1505.9$ por $171$ .

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$8.7 = 69.6 - 7 b - 7 c - 7 d$

$a = 8.7 - b - c - d$

Paso 3.3.4.9

Reemplaza todos los casos de $b$ en $8.7 = 69.6 - 7 b - 7 c - 7 d$ por $\frac{1487}{171} - c - d$ .

$8.7 = 69.6 - 7 (\frac{1487}{171} - c - d) - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10

Simplifica el lado derecho.

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Paso 3.3.4.10.1

Simplifica $69.6 - 7 (\frac{1487}{171} - c - d) - 7 c - 7 d$ .

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Paso 3.3.4.10.1.1

Simplifica cada término.

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Paso 3.3.4.10.1.1.1

Aplica la propiedad distributiva.

$8.7 = 69.6 - 7 (\frac{1487}{171}) - 7 (- c) - 7 (- d) - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.1.2

Simplifica.

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Paso 3.3.4.10.1.1.2.1

Multiplica $- 7 (\frac{1487}{171})$ .

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Paso 3.3.4.10.1.1.2.1.1

Combina $- 7$ y $\frac{1487}{171}$ .

$8.7 = 69.6 + \frac{- 7 \cdot 1487}{171} - 7 (- c) - 7 (- d) - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.1.2.1.2

Multiplica $- 7$ por $1487$ .

$8.7 = 69.6 + \frac{- 10409}{171} - 7 (- c) - 7 (- d) - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = 69.6 + \frac{- 10409}{171} - 7 (- c) - 7 (- d) - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.1.2.2

Multiplica $- 1$ por $- 7$ .

$8.7 = 69.6 + \frac{- 10409}{171} + 7 c - 7 (- d) - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.1.2.3

Multiplica $- 1$ por $- 7$ .

$8.7 = 69.6 + \frac{- 10409}{171} + 7 c + 7 d - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = 69.6 + \frac{- 10409}{171} + 7 c + 7 d - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.1.3

Mueve el negativo al frente de la fracción.

$8.7 = 69.6 - \frac{10409}{171} + 7 c + 7 d - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = 69.6 - \frac{10409}{171} + 7 c + 7 d - 7 c - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.2

Combina los términos opuestos en $69.6 - \frac{10409}{171} + 7 c + 7 d - 7 c - 7 d$ .

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Paso 3.3.4.10.1.2.1

Resta $7 c$ de $7 c$ .

$8.7 = 69.6 - \frac{10409}{171} + 7 d + 0 - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.2.2

Suma $69.6 - \frac{10409}{171} + 7 d$ y $0$ .

$8.7 = 69.6 - \frac{10409}{171} + 7 d - 7 d$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.2.3

Resta $7 d$ de $7 d$ .

$8.7 = 69.6 - \frac{10409}{171} + 0$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.2.4

Suma $69.6 - \frac{10409}{171}$ y $0$ .

$8.7 = 69.6 - \frac{10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = 69.6 - \frac{10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.3

Para escribir $69.6$ como una fracción con un denominador común, multiplica por $\frac{171}{171}$ .

$8.7 = 69.6 \cdot \frac{171}{171} - \frac{10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.4

Combina fracciones.

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Paso 3.3.4.10.1.4.1

Combina $69.6$ y $\frac{171}{171}$ .

$8.7 = \frac{69.6 \cdot 171}{171} - \frac{10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.4.2

Combina los numeradores sobre el denominador común.

$8.7 = \frac{69.6 \cdot 171 - 10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = \frac{69.6 \cdot 171 - 10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.5

Simplifica el numerador.

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Paso 3.3.4.10.1.5.1

Multiplica $69.6$ por $171$ .

$8.7 = \frac{11901.6 - 10409}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.5.2

Resta $10409$ de $11901.6$ .

$8.7 = \frac{1492.6}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = \frac{1492.6}{171}$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.10.1.6

Divide $1492.6$ por $171$ .

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - b - c - d$

Paso 3.3.4.11

Reemplaza todos los casos de $b$ en $a = 8.7 - b - c - d$ por $\frac{1487}{171} - c - d$ .

$a = 8.7 - (\frac{1487}{171} - c - d) - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12

Simplifica el lado derecho.

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Paso 3.3.4.12.1

Simplifica $8.7 - (\frac{1487}{171} - c - d) - c - d$ .

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Paso 3.3.4.12.1.1

Simplifica cada término.

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Paso 3.3.4.12.1.1.1

Aplica la propiedad distributiva.

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.1.2

Simplifica.

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Paso 3.3.4.12.1.1.2.1

Multiplica $- - c$ .

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Paso 3.3.4.12.1.1.2.1.1

Multiplica $- 1$ por $- 1$ .

$a = 8.7 - \frac{1487}{171} + 1 c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.1.2.1.2

Multiplica $c$ por $1$ .

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.1.2.2

Multiplica $- - d$ .

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Paso 3.3.4.12.1.1.2.2.1

Multiplica $- 1$ por $- 1$ .

$a = 8.7 - \frac{1487}{171} + c + 1 d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.1.2.2.2

Multiplica $d$ por $1$ .

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - \frac{1487}{171} + c + d - c - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.2

Combina los términos opuestos en $8.7 - \frac{1487}{171} + c + d - c - d$ .

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Paso 3.3.4.12.1.2.1

Resta $c$ de $c$ .

$a = 8.7 - \frac{1487}{171} + d + 0 - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.2.2

Suma $8.7 - \frac{1487}{171} + d$ y $0$ .

$a = 8.7 - \frac{1487}{171} + d - d$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.2.3

Resta $d$ de $d$ .

$a = 8.7 - \frac{1487}{171} + 0$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.2.4

Suma $8.7 - \frac{1487}{171}$ y $0$ .

$a = 8.7 - \frac{1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 8.7 - \frac{1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.3

Para escribir $8.7$ como una fracción con un denominador común, multiplica por $\frac{171}{171}$ .

$a = 8.7 \cdot \frac{171}{171} - \frac{1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.4

Combina fracciones.

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Paso 3.3.4.12.1.4.1

Combina $8.7$ y $\frac{171}{171}$ .

$a = \frac{8.7 \cdot 171}{171} - \frac{1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.4.2

Combina los numeradores sobre el denominador común.

$a = \frac{8.7 \cdot 171 - 1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = \frac{8.7 \cdot 171 - 1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.5

Simplifica el numerador.

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Paso 3.3.4.12.1.5.1

Multiplica $8.7$ por $171$ .

$a = \frac{1487.7 - 1487}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.5.2

Resta $1487$ de $1487.7$ .

$a = \frac{0.7}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = \frac{0.7}{171}$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.4.12.1.6

Divide $0.7$ por $171$ .

$a = 0.00409356$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 0.00409356$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 0.00409356$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

$a = 0.00409356$

$8.7 = 8.72865497$

$9.2 = 8.80643274$

$9.5 = 8.95789473$

$9.9 = 9.20760233$

$9.9 = 9.58011695$

$b = \frac{1487}{171} - c - d$

Paso 3.3.5

Como $8.7 = 8.72865497$ no es verdadera, no hay una solución.

No hay solución

Paso 3.4

Calcula el valor de $y$ con cada valor de $x$ en la tabla y compara este valor con el valor de $y$ dado en la tabla.

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Paso 3.4.1

Calcula el valor de $y$ tal que $y = a x^{3} + b$ cuando $a = 0$ , $b = 0$ , $c = 0$ , $d = 0$ y $x = 1$ .

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Paso 3.4.1.1

Simplifica cada término.

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Paso 3.4.1.1.1

Uno elevado a cualquier potencia es uno.

$y = 0 \cdot 1 + (0) \cdot (1^{2}) + (0) \cdot ((1) \cdot 0)$

Paso 3.4.1.1.2

Multiplica $0$ por $1$ .

$y = 0 + (0) \cdot (1^{2}) + (0) \cdot ((1) \cdot 0)$

Paso 3.4.1.1.3

Uno elevado a cualquier potencia es uno.

$y = 0 + 0 \cdot 1 + (0) \cdot ((1) \cdot 0)$

Paso 3.4.1.1.4

Multiplica $0$ por $1$ .

$y = 0 + 0 + (0) \cdot ((1) \cdot 0)$

Paso 3.4.1.1.5

Multiplica $(0) ((1) \cdot 0)$ .

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Paso 3.4.1.1.5.1

Multiplica $0$ por $1$ .

$y = 0 + 0 + 0 \cdot 0$

Paso 3.4.1.1.5.2

Multiplica $0$ por $0$ .

$y = 0 + 0 + 0$

Paso 3.4.1.2

Simplifica mediante la adición de números.

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Paso 3.4.1.2.1

Suma $0$ y $0$ .

$y = 0 + 0$

Paso 3.4.1.2.2

Suma $0$ y $0$ .

$y = 0$

Paso 3.4.2

Si la tabla tiene una regla de la función cúbica, $y = y$ para el valor correspondiente de $x$ , $x = 1$ . Esta comprobación no pasa, ya que $y = 0$ y $y = 8.7$ . La regla de la función no puede ser cúbica.

$0 \neq 8.7$

Paso 3.4.3

Como $y \neq y$ para los valores $x$ correspondientes, la función no es cúbica.

La función no es cúbica.

Paso 4

No hay valores de $a$ , $b$ , $c$ y $d$ en las ecuaciones $y = a x + b$ , $y = a x^{2} + b x + c$ y $y = a x^{3} + b x^{2} + c x + d$ que funcionen para todos los pares de $x$ y $y$ .

La tabla no tiene una regla de la función que sea lineal, cuadrática o cúbica.