Álgebra linear Exemplos

x - [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}] = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}]

$x - [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}] = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}]$

Etapa 1

Move all terms not containing a variable to the right side.

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Etapa 1.1

Some

[\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]

$[\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]$ aos dois lados da equação.

x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]

$x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]$

x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]

$x = [\begin{array}{c} - 2 & 12 & 2 \\ - 8 & \frac{3}{2} & 4 \end{array}] + [\begin{array}{c} 1 & - 12 & 0 \\ 10 & 9 & 1 \end{array}]$

Etapa 2

Simplifique o lado direito.

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Etapa 2.1

Adicione os elementos correspondentes.

x = [\begin{array}{c} - 2 + 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 2 + 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Etapa 2.2

Simplify each element.

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Etapa 2.2.1

Some

- 2

$- 2$ e

1

$1$ .

x = [\begin{array}{c} - 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 12 - 12 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Etapa 2.2.2

Subtraia

12

$12$ de

12

$12$ .

x = [\begin{array}{c} - 1 & 0 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 + 0 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Etapa 2.2.3

Some

2

$2$ e

0

$0$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ - 8 + 10 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Etapa 2.2.4

Some

- 8

$- 8$ e

10

$10$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 & 4 + 1 \end{array}]$

Etapa 2.2.5

Para escrever

9

$9$ como fração com um denominador comum, multiplique por

\frac{2}{2}

$\frac{2}{2}$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 \cdot \frac{2}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + 9 \cdot \frac{2}{2} & 4 + 1 \end{array}]$

Etapa 2.2.6

Combine

9

$9$ e

\frac{2}{2}

$\frac{2}{2}$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + \frac{9 \cdot 2}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3}{2} + \frac{9 \cdot 2}{2} & 4 + 1 \end{array}]$

Etapa 2.2.7

Combine os numeradores em relação ao denominador comum.

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 9 \cdot 2}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 9 \cdot 2}{2} & 4 + 1 \end{array}]$

Etapa 2.2.8

Simplifique o numerador.

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Etapa 2.2.8.1

Multiplique

9

$9$ por

2

$2$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 18}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{3 + 18}{2} & 4 + 1 \end{array}]$

Etapa 2.2.8.2

Some

3

$3$ e

18

$18$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]$

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 4 + 1 \end{array}]$

Etapa 2.2.9

Some

4

$4$ e

1

$1$ .

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]$

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]$

x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]

$x = [\begin{array}{c} - 1 & 0 & 2 \\ 2 & \frac{21}{2} & 5 \end{array}]$

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