Finite Math Examples

$x \cdot 1 + x \cdot 2 + x \cdot 3 + s \cdot 1 = 38$ , $- x \cdot 1 + x \cdot 2 - x \cdot 3 + s \cdot 2 = 0$ , $x \cdot 3 + s \cdot 3 = 2$ , $- 200 x \cdot 1 - 644 x \cdot 2 - 266 x \cdot 3 + z = 0$

Step 1

Add $2286 x$ to both sides of the equation.

$z = 2286 x$

$6 \cdot x + s = 38$

$- 2 x + s \cdot 2 = 0$

$x \cdot 3 + s \cdot 3 = 2$

Step 2

Solve for $s$ in $6 \cdot x + s = 38$ .

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Step 2.1

Multiply $6$ by $x$ .

$6 x + s = 38$

$z = 2286 x$

$- 2 x + s \cdot 2 = 0$

$x \cdot 3 + s \cdot 3 = 2$

Step 2.2

Subtract $6 x$ from both sides of the equation.

$s = 38 - 6 x$

$z = 2286 x$

$- 2 x + s \cdot 2 = 0$

$x \cdot 3 + s \cdot 3 = 2$

$s = 38 - 6 x$

$z = 2286 x$

$- 2 x + s \cdot 2 = 0$

$x \cdot 3 + s \cdot 3 = 2$

Step 3

Replace all occurrences of $s$ with $38 - 6 x$ in each equation.

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Step 3.1

Replace all occurrences of $s$ in $- 2 x + s \cdot 2 = 0$ with $38 - 6 x$ .

$- 2 x + (38 - 6 x) \cdot 2 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

Step 3.2

Simplify the left side.

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Step 3.2.1

Simplify $- 2 x + (38 - 6 x) \cdot 2$ .

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Step 3.2.1.1

Simplify each term.

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Step 3.2.1.1.1

Apply the distributive property.

$- 2 x + 38 \cdot 2 - 6 x \cdot 2 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

Step 3.2.1.1.2

Multiply $38$ by $2$ .

$- 2 x + 76 - 6 x \cdot 2 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

Step 3.2.1.1.3

Multiply $2$ by $- 6$ .

$- 2 x + 76 - 12 x = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

$- 2 x + 76 - 12 x = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

Step 3.2.1.2

Subtract $12 x$ from $- 2 x$ .

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x \cdot 3 + s \cdot 3 = 2$

Step 3.3

Replace all occurrences of $s$ in $x \cdot 3 + s \cdot 3 = 2$ with $38 - 6 x$ .

$x \cdot 3 + (38 - 6 x) \cdot 3 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 3.4

Simplify the left side.

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Step 3.4.1

Simplify $x \cdot 3 + (38 - 6 x) \cdot 3$ .

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Step 3.4.1.1

Simplify each term.

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Step 3.4.1.1.1

Move $3$ to the left of $x$ .

$3 \cdot x + (38 - 6 x) \cdot 3 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 3.4.1.1.2

Apply the distributive property.

$3 x + 38 \cdot 3 - 6 x \cdot 3 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 3.4.1.1.3

Multiply $38$ by $3$ .

$3 x + 114 - 6 x \cdot 3 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 3.4.1.1.4

Multiply $3$ by $- 6$ .

$3 x + 114 - 18 x = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$3 x + 114 - 18 x = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 3.4.1.2

Subtract $18 x$ from $3 x$ .

$- 15 x + 114 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$- 15 x + 114 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$- 15 x + 114 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$- 15 x + 114 = 2$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 4

Solve for $x$ in $- 15 x + 114 = 2$ .

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Step 4.1

Move all terms not containing $x$ to the right side of the equation.

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Step 4.1.1

Subtract $114$ from both sides of the equation.

$- 15 x = 2 - 114$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 4.1.2

Subtract $114$ from $2$ .

$- 15 x = - 112$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$- 15 x = - 112$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 4.2

Divide each term in $- 15 x = - 112$ by $- 15$ and simplify.

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Step 4.2.1

Divide each term in $- 15 x = - 112$ by $- 15$ .

$\frac{- 15 x}{- 15} = \frac{- 112}{- 15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 4.2.2

Simplify the left side.

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Step 4.2.2.1

Cancel the common factor of $- 15$ .

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Step 4.2.2.1.1

Cancel the common factor.

$\frac{- 15 x}{- 15} = \frac{- 112}{- 15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 4.2.2.1.2

Divide $x$ by $1$ .

$x = \frac{- 112}{- 15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x = \frac{- 112}{- 15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x = \frac{- 112}{- 15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 4.2.3

Simplify the right side.

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Step 4.2.3.1

Dividing two negative values results in a positive value.

$x = \frac{112}{15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x = \frac{112}{15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x = \frac{112}{15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

$x = \frac{112}{15}$

$- 14 x + 76 = 0$

$s = 38 - 6 x$

$z = 2286 x$

Step 5

Replace all occurrences of $x$ with $\frac{112}{15}$ in each equation.

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Step 5.1

Replace all occurrences of $x$ in $- 14 x + 76 = 0$ with $\frac{112}{15}$ .

$- 14 (\frac{112}{15}) + 76 = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2

Simplify the left side.

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Step 5.2.1

Simplify $- 14 (\frac{112}{15}) + 76$ .

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Step 5.2.1.1

Simplify each term.

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Step 5.2.1.1.1

Multiply $- 14 (\frac{112}{15})$ .

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Step 5.2.1.1.1.1

Combine $- 14$ and $\frac{112}{15}$ .

$\frac{- 14 \cdot 112}{15} + 76 = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.1.1.2

Multiply $- 14$ by $112$ .

$\frac{- 1568}{15} + 76 = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

$\frac{- 1568}{15} + 76 = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.1.2

Move the negative in front of the fraction.

$- \frac{1568}{15} + 76 = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

$- \frac{1568}{15} + 76 = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.2

To write $76$ as a fraction with a common denominator, multiply by $\frac{15}{15}$ .

$- \frac{1568}{15} + 76 \cdot \frac{15}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.3

Combine $76$ and $\frac{15}{15}$ .

$- \frac{1568}{15} + \frac{76 \cdot 15}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.4

Combine the numerators over the common denominator.

$\frac{- 1568 + 76 \cdot 15}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.5

Simplify the numerator.

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Step 5.2.1.5.1

Multiply $76$ by $15$ .

$\frac{- 1568 + 1140}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.5.2

Add $- 1568$ and $1140$ .

$\frac{- 428}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

$\frac{- 428}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.2.1.6

Move the negative in front of the fraction.

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$s = 38 - 6 x$

$z = 2286 x$

Step 5.3

Replace all occurrences of $x$ in $s = 38 - 6 x$ with $\frac{112}{15}$ .

$s = 38 - 6 (\frac{112}{15})$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4

Simplify the right side.

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Step 5.4.1

Simplify $38 - 6 (\frac{112}{15})$ .

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Step 5.4.1.1

Simplify each term.

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Step 5.4.1.1.1

Cancel the common factor of $3$ .

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Step 5.4.1.1.1.1

Factor $3$ out of $- 6$ .

$s = 38 + 3 (- 2) (\frac{112}{15})$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.1.1.2

Factor $3$ out of $15$ .

$s = 38 + 3 \cdot (- 2 \frac{112}{3 \cdot 5})$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.1.1.3

Cancel the common factor.

$s = 38 + 3 \cdot (- 2 \frac{112}{3 \cdot 5})$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.1.1.4

Rewrite the expression.

$s = 38 - 2 (\frac{112}{5})$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

$s = 38 - 2 (\frac{112}{5})$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.1.2

Combine $- 2$ and $\frac{112}{5}$ .

$s = 38 + \frac{- 2 \cdot 112}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.1.3

Multiply $- 2$ by $112$ .

$s = 38 + \frac{- 224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.1.4

Move the negative in front of the fraction.

$s = 38 - \frac{224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

$s = 38 - \frac{224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.2

To write $38$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$s = 38 \cdot \frac{5}{5} - \frac{224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.3

Combine $38$ and $\frac{5}{5}$ .

$s = \frac{38 \cdot 5}{5} - \frac{224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.4

Combine the numerators over the common denominator.

$s = \frac{38 \cdot 5 - 224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.5

Simplify the numerator.

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Step 5.4.1.5.1

Multiply $38$ by $5$ .

$s = \frac{190 - 224}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.5.2

Subtract $224$ from $190$ .

$s = \frac{- 34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

$s = \frac{- 34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.4.1.6

Move the negative in front of the fraction.

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 2286 x$

Step 5.5

Replace all occurrences of $x$ in $z = 2286 x$ with $\frac{112}{15}$ .

$z = 2286 (\frac{112}{15})$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 5.6

Simplify the right side.

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Step 5.6.1

Simplify $2286 (\frac{112}{15})$ .

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Step 5.6.1.1

Cancel the common factor of $3$ .

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Step 5.6.1.1.1

Factor $3$ out of $2286$ .

$z = 3 (762) (\frac{112}{15})$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 5.6.1.1.2

Factor $3$ out of $15$ .

$z = 3 \cdot (762 (\frac{112}{3 \cdot 5}))$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 5.6.1.1.3

Cancel the common factor.

$z = 3 \cdot (762 (\frac{112}{3 \cdot 5}))$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 5.6.1.1.4

Rewrite the expression.

$z = 762 (\frac{112}{5})$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = 762 (\frac{112}{5})$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 5.6.1.2

Combine $762$ and $\frac{112}{5}$ .

$z = \frac{762 \cdot 112}{5}$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 5.6.1.3

Multiply $762$ by $112$ .

$z = \frac{85344}{5}$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = \frac{85344}{5}$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = \frac{85344}{5}$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

$z = \frac{85344}{5}$

$s = - \frac{34}{5}$

$- \frac{428}{15} = 0$

$x = \frac{112}{15}$

Step 6

Since $- \frac{428}{15} = 0$ is not true, there is no solution.

No solution