Finite Math Examples

$y = - 3 x - 3 x - 3 z + 17$ , $x = - 2 y - z + 19$ , $z = x - y$

Step 1

Replace all occurrences of $y$ with $- 6 x - 3 z + 17$ in each equation.

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Step 1.1

Replace all occurrences of $y$ in $x = - 2 y - z + 19$ with $- 6 x - 3 z + 17$ .

$x = - 2 (- 6 x - 3 z + 17) - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.2

Simplify the right side.

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Step 1.2.1

Simplify $- 2 (- 6 x - 3 z + 17) - z + 19$ .

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Step 1.2.1.1

Simplify each term.

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Step 1.2.1.1.1

Apply the distributive property.

$x = - 2 (- 6 x) - 2 (- 3 z) - 2 \cdot 17 - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.2.1.1.2

Simplify.

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Step 1.2.1.1.2.1

Multiply $- 6$ by $- 2$ .

$x = 12 x - 2 (- 3 z) - 2 \cdot 17 - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.2.1.1.2.2

Multiply $- 3$ by $- 2$ .

$x = 12 x + 6 z - 2 \cdot 17 - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.2.1.1.2.3

Multiply $- 2$ by $17$ .

$x = 12 x + 6 z - 34 - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

$x = 12 x + 6 z - 34 - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

$x = 12 x + 6 z - 34 - z + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.2.1.2

Simplify by adding terms.

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Step 1.2.1.2.1

Subtract $z$ from $6 z$ .

$x = 12 x + 5 z - 34 + 19$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.2.1.2.2

Add $- 34$ and $19$ .

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = x - y$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = x - y$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = x - y$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = x - y$

Step 1.3

Replace all occurrences of $y$ in $z = x - y$ with $- 6 x - 3 z + 17$ .

$z = x - (- 6 x - 3 z + 17)$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 1.4

Simplify the right side.

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Step 1.4.1

Simplify $x - (- 6 x - 3 z + 17)$ .

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Step 1.4.1.1

Simplify each term.

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Step 1.4.1.1.1

Apply the distributive property.

$z = x - (- 6 x) - (- 3 z) - 1 \cdot 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 1.4.1.1.2

Simplify.

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Step 1.4.1.1.2.1

Multiply $- 6$ by $- 1$ .

$z = x + 6 x - (- 3 z) - 1 \cdot 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 1.4.1.1.2.2

Multiply $- 3$ by $- 1$ .

$z = x + 6 x + 3 z - 1 \cdot 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 1.4.1.1.2.3

Multiply $- 1$ by $17$ .

$z = x + 6 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = x + 6 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = x + 6 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 1.4.1.2

Add $x$ and $6 x$ .

$z = 7 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = 7 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = 7 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = 7 x + 3 z - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2

Solve for $z$ in $z = 7 x + 3 z - 17$ .

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Step 2.1

Move all terms containing $z$ to the left side of the equation.

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Step 2.1.1

Subtract $3 z$ from both sides of the equation.

$z - 3 z = 7 x - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2.1.2

Subtract $3 z$ from $z$ .

$- 2 z = 7 x - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$- 2 z = 7 x - 17$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2.2

Divide each term in $- 2 z = 7 x - 17$ by $- 2$ and simplify.

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Step 2.2.1

Divide each term in $- 2 z = 7 x - 17$ by $- 2$ .

$\frac{- 2 z}{- 2} = \frac{7 x}{- 2} + \frac{- 17}{- 2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2.2.2

Simplify the left side.

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Step 2.2.2.1

Cancel the common factor of $- 2$ .

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Step 2.2.2.1.1

Cancel the common factor.

$\frac{- 2 z}{- 2} = \frac{7 x}{- 2} + \frac{- 17}{- 2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2.2.2.1.2

Divide $z$ by $1$ .

$z = \frac{7 x}{- 2} + \frac{- 17}{- 2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = \frac{7 x}{- 2} + \frac{- 17}{- 2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = \frac{7 x}{- 2} + \frac{- 17}{- 2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2.2.3

Simplify the right side.

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Step 2.2.3.1

Simplify each term.

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Step 2.2.3.1.1

Move the negative in front of the fraction.

$z = - \frac{7 x}{2} + \frac{- 17}{- 2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 2.2.3.1.2

Dividing two negative values results in a positive value.

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = 12 x + 5 z - 15$

$y = - 6 x - 3 z + 17$

Step 3

Replace all occurrences of $z$ with $- \frac{7 x}{2} + \frac{17}{2}$ in each equation.

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Step 3.1

Replace all occurrences of $z$ in $x = 12 x + 5 z - 15$ with $- \frac{7 x}{2} + \frac{17}{2}$ .

$x = 12 x + 5 (- \frac{7 x}{2} + \frac{17}{2}) - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2

Simplify the right side.

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Step 3.2.1

Simplify $12 x + 5 (- \frac{7 x}{2} + \frac{17}{2}) - 15$ .

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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.

$x = 12 x + 5 (- \frac{7 x}{2}) + 5 (\frac{17}{2}) - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.1.2

Multiply $5 (- \frac{7 x}{2})$ .

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Step 3.2.1.1.2.1

Multiply $- 1$ by $5$ .

$x = 12 x - 5 \frac{7 x}{2} + 5 (\frac{17}{2}) - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.1.2.2

Combine $- 5$ and $\frac{7 x}{2}$ .

$x = 12 x + \frac{- 5 (7 x)}{2} + 5 (\frac{17}{2}) - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.1.2.3

Multiply $7$ by $- 5$ .

$x = 12 x + \frac{- 35 x}{2} + 5 (\frac{17}{2}) - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = 12 x + \frac{- 35 x}{2} + 5 (\frac{17}{2}) - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.1.3

Multiply $5 (\frac{17}{2})$ .

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Step 3.2.1.1.3.1

Combine $5$ and $\frac{17}{2}$ .

$x = 12 x + \frac{- 35 x}{2} + \frac{5 \cdot 17}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.1.3.2

Multiply $5$ by $17$ .

$x = 12 x + \frac{- 35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = 12 x + \frac{- 35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.1.4

Move the negative in front of the fraction.

$x = 12 x - \frac{35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = 12 x - \frac{35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.2

To write $12 x$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$x = 12 x \cdot \frac{2}{2} - \frac{35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.3

Combine $12 x$ and $\frac{2}{2}$ .

$x = \frac{12 x \cdot 2}{2} - \frac{35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.4

Combine the numerators over the common denominator.

$x = \frac{12 x \cdot 2 - 35 x}{2} + \frac{85}{2} - 15$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.5

Combine the numerators over the common denominator.

$x = - 15 + \frac{12 x \cdot 2 - 35 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.6

Multiply $2$ by $12$ .

$x = - 15 + \frac{24 x - 35 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.7

Subtract $35 x$ from $24 x$ .

$x = - 15 + \frac{- 11 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.8

To write $- 15$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$x = - 15 \cdot \frac{2}{2} + \frac{- 11 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.9

Simplify terms.

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Step 3.2.1.9.1

Combine $- 15$ and $\frac{2}{2}$ .

$x = \frac{- 15 \cdot 2}{2} + \frac{- 11 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.9.2

Combine the numerators over the common denominator.

$x = \frac{- 15 \cdot 2 - 11 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = \frac{- 15 \cdot 2 - 11 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.10

Simplify the numerator.

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Step 3.2.1.10.1

Multiply $- 15$ by $2$ .

$x = \frac{- 30 - 11 x + 85}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.10.2

Add $- 30$ and $85$ .

$x = \frac{- 11 x + 55}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.10.3

Factor $11$ out of $- 11 x + 55$ .

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Step 3.2.1.10.3.1

Factor $11$ out of $- 11 x$ .

$x = \frac{11 (- x) + 55}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.10.3.2

Factor $11$ out of $55$ .

$x = \frac{11 (- x) + 11 (5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.10.3.3

Factor $11$ out of $11 (- x) + 11 (5)$ .

$x = \frac{11 (- x + 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = \frac{11 (- x + 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = \frac{11 (- x + 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.11

Simplify with factoring out.

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Step 3.2.1.11.1

Factor $- 1$ out of $- x$ .

$x = \frac{11 (- (x) + 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.11.2

Rewrite $5$ as $- 1 (- 5)$ .

$x = \frac{11 (- (x) - 1 \cdot - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.11.3

Factor $- 1$ out of $- (x) - 1 (- 5)$ .

$x = \frac{11 (- (x - 5))}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.11.4

Simplify the expression.

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Step 3.2.1.11.4.1

Rewrite $- (x - 5)$ as $- 1 (x - 5)$ .

$x = \frac{11 (- 1 (x - 5))}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.2.1.11.4.2

Move the negative in front of the fraction.

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x - 3 z + 17$

Step 3.3

Replace all occurrences of $z$ in $y = - 6 x - 3 z + 17$ with $- \frac{7 x}{2} + \frac{17}{2}$ .

$y = - 6 x - 3 (- \frac{7 x}{2} + \frac{17}{2}) + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4

Simplify the right side.

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Step 3.4.1

Simplify $- 6 x - 3 (- \frac{7 x}{2} + \frac{17}{2}) + 17$ .

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Step 3.4.1.1

Simplify each term.

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Step 3.4.1.1.1

Apply the distributive property.

$y = - 6 x - 3 (- \frac{7 x}{2}) - 3 (\frac{17}{2}) + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.1.2

Multiply $- 3 (- \frac{7 x}{2})$ .

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Step 3.4.1.1.2.1

Multiply $- 1$ by $- 3$ .

$y = - 6 x + 3 (\frac{7 x}{2}) - 3 (\frac{17}{2}) + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.1.2.2

Combine $3$ and $\frac{7 x}{2}$ .

$y = - 6 x + \frac{3 (7 x)}{2} - 3 (\frac{17}{2}) + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.1.2.3

Multiply $7$ by $3$ .

$y = - 6 x + \frac{21 x}{2} - 3 (\frac{17}{2}) + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x + \frac{21 x}{2} - 3 (\frac{17}{2}) + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.1.3

Multiply $- 3 (\frac{17}{2})$ .

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Step 3.4.1.1.3.1

Combine $- 3$ and $\frac{17}{2}$ .

$y = - 6 x + \frac{21 x}{2} + \frac{- 3 \cdot 17}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.1.3.2

Multiply $- 3$ by $17$ .

$y = - 6 x + \frac{21 x}{2} + \frac{- 51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x + \frac{21 x}{2} + \frac{- 51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.1.4

Move the negative in front of the fraction.

$y = - 6 x + \frac{21 x}{2} - \frac{51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = - 6 x + \frac{21 x}{2} - \frac{51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.2

To write $- 6 x$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$y = - 6 x \cdot \frac{2}{2} + \frac{21 x}{2} - \frac{51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.3

Combine $- 6 x$ and $\frac{2}{2}$ .

$y = \frac{- 6 x \cdot 2}{2} + \frac{21 x}{2} - \frac{51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.4

Combine the numerators over the common denominator.

$y = \frac{- 6 x \cdot 2 + 21 x}{2} - \frac{51}{2} + 17$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.5

Combine the numerators over the common denominator.

$y = 17 + \frac{- 6 x \cdot 2 + 21 x - 51}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.6

Multiply $2$ by $- 6$ .

$y = 17 + \frac{- 12 x + 21 x - 51}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.7

Add $- 12 x$ and $21 x$ .

$y = 17 + \frac{9 x - 51}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.8

Factor $3$ out of $9 x - 51$ .

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Step 3.4.1.8.1

Factor $3$ out of $9 x$ .

$y = 17 + \frac{3 (3 x) - 51}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.8.2

Factor $3$ out of $- 51$ .

$y = 17 + \frac{3 (3 x) + 3 (- 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.8.3

Factor $3$ out of $3 (3 x) + 3 (- 17)$ .

$y = 17 + \frac{3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = 17 + \frac{3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.9

To write $17$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$y = 17 \cdot \frac{2}{2} + \frac{3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.10

Simplify terms.

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Step 3.4.1.10.1

Combine $17$ and $\frac{2}{2}$ .

$y = \frac{17 \cdot 2}{2} + \frac{3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.10.2

Combine the numerators over the common denominator.

$y = \frac{17 \cdot 2 + 3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{17 \cdot 2 + 3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.11

Simplify the numerator.

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Step 3.4.1.11.1

Multiply $17$ by $2$ .

$y = \frac{34 + 3 (3 x - 17)}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.11.2

Apply the distributive property.

$y = \frac{34 + 3 (3 x) + 3 \cdot - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.11.3

Multiply $3$ by $3$ .

$y = \frac{34 + 9 x + 3 \cdot - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.11.4

Multiply $3$ by $- 17$ .

$y = \frac{34 + 9 x - 51}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 3.4.1.11.5

Subtract $51$ from $34$ .

$y = \frac{9 x - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{9 x - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{9 x - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{9 x - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{9 x - 17}{2}$

$x = - \frac{11 (x - 5)}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4

Solve for $x$ in $x = - \frac{11 (x - 5)}{2}$ .

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Step 4.1

Multiply both sides by $2$ .

$x \cdot 2 = - \frac{11 (x - 5)}{2} \cdot 2$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.2

Simplify.

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Step 4.2.1

Simplify the left side.

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Step 4.2.1.1

Move $2$ to the left of $x$ .

$2 x = - \frac{11 (x - 5)}{2} \cdot 2$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$2 x = - \frac{11 (x - 5)}{2} \cdot 2$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.2.2

Simplify the right side.

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Step 4.2.2.1

Simplify $- \frac{11 (x - 5)}{2} \cdot 2$ .

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Step 4.2.2.1.1

Cancel the common factor of $2$ .

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Step 4.2.2.1.1.1

Move the leading negative in $- \frac{11 (x - 5)}{2}$ into the numerator.

$2 x = \frac{- 11 (x - 5)}{2} \cdot 2$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.2.2.1.1.2

Cancel the common factor.

$2 x = \frac{- 11 (x - 5)}{2} \cdot 2$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.2.2.1.1.3

Rewrite the expression.

$2 x = - 11 (x - 5)$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$2 x = - 11 (x - 5)$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.2.2.1.2

Apply the distributive property.

$2 x = - 11 x - 11 \cdot - 5$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.2.2.1.3

Multiply $- 11$ by $- 5$ .

$2 x = - 11 x + 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$2 x = - 11 x + 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$2 x = - 11 x + 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$2 x = - 11 x + 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.3

Solve for $x$ .

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Step 4.3.1

Move all terms containing $x$ to the left side of the equation.

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Step 4.3.1.1

Add $11 x$ to both sides of the equation.

$2 x + 11 x = 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.3.1.2

Add $2 x$ and $11 x$ .

$13 x = 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$13 x = 55$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.3.2

Divide each term in $13 x = 55$ by $13$ and simplify.

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Step 4.3.2.1

Divide each term in $13 x = 55$ by $13$ .

$\frac{13 x}{13} = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.3.2.2

Simplify the left side.

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Step 4.3.2.2.1

Cancel the common factor of $13$ .

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Step 4.3.2.2.1.1

Cancel the common factor.

$\frac{13 x}{13} = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 4.3.2.2.1.2

Divide $x$ by $1$ .

$x = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$x = \frac{55}{13}$

$y = \frac{9 x - 17}{2}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5

Replace all occurrences of $x$ with $\frac{55}{13}$ in each equation.

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Step 5.1

Replace all occurrences of $x$ in $y = \frac{9 x - 17}{2}$ with $\frac{55}{13}$ .

$y = \frac{9 (\frac{55}{13}) - 17}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2

Simplify the right side.

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Step 5.2.1

Simplify $\frac{9 (\frac{55}{13}) - 17}{2}$ .

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Step 5.2.1.1

Simplify the numerator.

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Step 5.2.1.1.1

Multiply $9 (\frac{55}{13})$ .

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Step 5.2.1.1.1.1

Combine $9$ and $\frac{55}{13}$ .

$y = \frac{\frac{9 \cdot 55}{13} - 17}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.1.1.2

Multiply $9$ by $55$ .

$y = \frac{\frac{495}{13} - 17}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{\frac{495}{13} - 17}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.1.2

To write $- 17$ as a fraction with a common denominator, multiply by $\frac{13}{13}$ .

$y = \frac{\frac{495}{13} - 17 \cdot \frac{13}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.1.3

Combine $- 17$ and $\frac{13}{13}$ .

$y = \frac{\frac{495}{13} + \frac{- 17 \cdot 13}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.1.4

Combine the numerators over the common denominator.

$y = \frac{\frac{495 - 17 \cdot 13}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.1.5

Simplify the numerator.

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Step 5.2.1.1.5.1

Multiply $- 17$ by $13$ .

$y = \frac{\frac{495 - 221}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.1.5.2

Subtract $221$ from $495$ .

$y = \frac{\frac{274}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{\frac{274}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{\frac{274}{13}}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.2

Multiply the numerator by the reciprocal of the denominator.

$y = \frac{274}{13} \cdot \frac{1}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.3

Cancel the common factor of $2$ .

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Step 5.2.1.3.1

Factor $2$ out of $274$ .

$y = \frac{2 (137)}{13} \cdot \frac{1}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.3.2

Cancel the common factor.

$y = \frac{2 \cdot 137}{13} \cdot \frac{1}{2}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.2.1.3.3

Rewrite the expression.

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{7 x}{2} + \frac{17}{2}$

Step 5.3

Replace all occurrences of $x$ in $z = - \frac{7 x}{2} + \frac{17}{2}$ with $\frac{55}{13}$ .

$z = - \frac{7 (\frac{55}{13})}{2} + \frac{17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4

Simplify the right side.

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Step 5.4.1

Simplify $- \frac{7 (\frac{55}{13})}{2} + \frac{17}{2}$ .

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Step 5.4.1.1

Combine the numerators over the common denominator.

$z = \frac{- 7 (\frac{55}{13}) + 17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.2

Simplify each term.

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Step 5.4.1.2.1

Multiply $- 7 (\frac{55}{13})$ .

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Step 5.4.1.2.1.1

Combine $- 7$ and $\frac{55}{13}$ .

$z = \frac{\frac{- 7 \cdot 55}{13} + 17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.2.1.2

Multiply $- 7$ by $55$ .

$z = \frac{\frac{- 385}{13} + 17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = \frac{\frac{- 385}{13} + 17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.2.2

Move the negative in front of the fraction.

$z = \frac{- \frac{385}{13} + 17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = \frac{- \frac{385}{13} + 17}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.3

To write $17$ as a fraction with a common denominator, multiply by $\frac{13}{13}$ .

$z = \frac{- \frac{385}{13} + 17 \cdot \frac{13}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.4

Combine $17$ and $\frac{13}{13}$ .

$z = \frac{- \frac{385}{13} + \frac{17 \cdot 13}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.5

Combine the numerators over the common denominator.

$z = \frac{\frac{- 385 + 17 \cdot 13}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.6

Simplify the numerator.

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Step 5.4.1.6.1

Multiply $17$ by $13$ .

$z = \frac{\frac{- 385 + 221}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.6.2

Add $- 385$ and $221$ .

$z = \frac{\frac{- 164}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = \frac{\frac{- 164}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.7

Move the negative in front of the fraction.

$z = \frac{- \frac{164}{13}}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.8

Multiply the numerator by the reciprocal of the denominator.

$z = - \frac{164}{13} \cdot \frac{1}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.9

Cancel the common factor of $2$ .

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Step 5.4.1.9.1

Move the leading negative in $- \frac{164}{13}$ into the numerator.

$z = \frac{- 164}{13} \cdot \frac{1}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.9.2

Factor $2$ out of $- 164$ .

$z = \frac{2 (- 82)}{13} \cdot \frac{1}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.9.3

Cancel the common factor.

$z = \frac{2 \cdot - 82}{13} \cdot \frac{1}{2}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.9.4

Rewrite the expression.

$z = \frac{- 82}{13}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = \frac{- 82}{13}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 5.4.1.10

Move the negative in front of the fraction.

$z = - \frac{82}{13}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{82}{13}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{82}{13}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

$z = - \frac{82}{13}$

$y = \frac{137}{13}$

$x = \frac{55}{13}$

Step 6

The solution to the system is the complete set of ordered pairs that are valid solutions.

$(\frac{55}{13}, \frac{137}{13}, - \frac{82}{13})$

Step 7

The result can be shown in multiple forms.

Point Form:

$(\frac{55}{13}, \frac{137}{13}, - \frac{82}{13})$

Equation Form:

$x = \frac{55}{13}, y = \frac{137}{13}, z = - \frac{82}{13}$