Precalculus Examples

$x + y - z = - 2$ , $3 x - y + z = 6$ , $- x + 5 y - 4 z = 1$

Step 1

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

Tap for more steps...

Step 1.1

Subtract $y$ from both sides of the equation.

$x - z = - 2 - y$

$3 x - y + z = 6$

$- x + 5 y - 4 z = 1$

Step 1.2

Add $z$ to both sides of the equation.

$x = - 2 - y + z$

$3 x - y + z = 6$

$- x + 5 y - 4 z = 1$

$x = - 2 - y + z$

$3 x - y + z = 6$

$- x + 5 y - 4 z = 1$

Step 2

Replace all occurrences of $x$ with $- 2 - y + z$ in each equation.

Tap for more steps...

Step 2.1

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

$3 (- 2 - y + z) - y + z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

Step 2.2

Simplify the left side.

Tap for more steps...

Step 2.2.1

Simplify $3 (- 2 - y + z) - y + z$ .

Tap for more steps...

Step 2.2.1.1

Simplify each term.

Tap for more steps...

Step 2.2.1.1.1

Apply the distributive property.

$3 \cdot - 2 + 3 (- y) + 3 z - y + z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

Step 2.2.1.1.2

Simplify.

Tap for more steps...

Step 2.2.1.1.2.1

Multiply $3$ by $- 2$ .

$- 6 + 3 (- y) + 3 z - y + z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

Step 2.2.1.1.2.2

Multiply $- 1$ by $3$ .

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

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

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

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

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

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

Step 2.2.1.2

Simplify by adding terms.

Tap for more steps...

Step 2.2.1.2.1

Subtract $y$ from $- 3 y$ .

$- 6 - 4 y + 3 z + z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

Step 2.2.1.2.2

Add $3 z$ and $z$ .

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$- x + 5 y - 4 z = 1$

Step 2.3

Replace all occurrences of $x$ in $- x + 5 y - 4 z = 1$ with $- 2 - y + z$ .

$- (- 2 - y + z) + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 2.4

Simplify the left side.

Tap for more steps...

Step 2.4.1

Simplify $- (- 2 - y + z) + 5 y - 4 z$ .

Tap for more steps...

Step 2.4.1.1

Simplify each term.

Tap for more steps...

Step 2.4.1.1.1

Apply the distributive property.

$2 + y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 2.4.1.1.2

Simplify.

Tap for more steps...

Step 2.4.1.1.2.1

Multiply $- 1$ by $- 2$ .

$2 + y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 2.4.1.1.2.2

Multiply $- - y$ .

Tap for more steps...

Step 2.4.1.1.2.2.1

Multiply $- 1$ by $- 1$ .

$2 + 1 y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 2.4.1.1.2.2.2

Multiply $y$ by $1$ .

$2 + y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + y - z + 5 y - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 2.4.1.2

Simplify by adding terms.

Tap for more steps...

Step 2.4.1.2.1

Add $y$ and $5 y$ .

$2 + 6 y - z - 4 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 2.4.1.2.2

Subtract $4 z$ from $- z$ .

$2 + 6 y - 5 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + 6 y - 5 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + 6 y - 5 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + 6 y - 5 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$2 + 6 y - 5 z = 1$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3

Solve for $y$ in $2 + 6 y - 5 z = 1$ .

Tap for more steps...

Step 3.1

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

Tap for more steps...

Step 3.1.1

Subtract $2$ from both sides of the equation.

$6 y - 5 z = 1 - 2$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3.1.2

Add $5 z$ to both sides of the equation.

$6 y = 1 - 2 + 5 z$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3.1.3

Subtract $2$ from $1$ .

$6 y = - 1 + 5 z$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$6 y = - 1 + 5 z$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3.2

Divide each term in $6 y = - 1 + 5 z$ by $6$ and simplify.

Tap for more steps...

Step 3.2.1

Divide each term in $6 y = - 1 + 5 z$ by $6$ .

$\frac{6 y}{6} = \frac{- 1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3.2.2

Simplify the left side.

Tap for more steps...

Step 3.2.2.1

Cancel the common factor of $6$ .

Tap for more steps...

Step 3.2.2.1.1

Cancel the common factor.

$\frac{6 y}{6} = \frac{- 1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3.2.2.1.2

Divide $y$ by $1$ .

$y = \frac{- 1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$y = \frac{- 1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$y = \frac{- 1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 3.2.3

Simplify the right side.

Tap for more steps...

Step 3.2.3.1

Move the negative in front of the fraction.

$y = - \frac{1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$- 6 - 4 y + 4 z = 6$

$x = - 2 - y + z$

Step 4

Replace all occurrences of $y$ with $- \frac{1}{6} + \frac{5 z}{6}$ in each equation.

Tap for more steps...

Step 4.1

Replace all occurrences of $y$ in $- 6 - 4 y + 4 z = 6$ with $- \frac{1}{6} + \frac{5 z}{6}$ .

$- 6 - 4 (- \frac{1}{6} + \frac{5 z}{6}) + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2

Simplify the left side.

Tap for more steps...

Step 4.2.1

Simplify $- 6 - 4 (- \frac{1}{6} + \frac{5 z}{6}) + 4 z$ .

Tap for more steps...

Step 4.2.1.1

Simplify each term.

Tap for more steps...

Step 4.2.1.1.1

Apply the distributive property.

$- 6 - 4 (- \frac{1}{6}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.2

Cancel the common factor of $2$ .

Tap for more steps...

Step 4.2.1.1.2.1

Move the leading negative in $- \frac{1}{6}$ into the numerator.

$- 6 - 4 (\frac{- 1}{6}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.2.2

Factor $2$ out of $- 4$ .

$- 6 + 2 (- 2) (\frac{- 1}{6}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.2.3

Factor $2$ out of $6$ .

$- 6 + 2 \cdot (- 2 \frac{- 1}{2 \cdot 3}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.2.4

Cancel the common factor.

$- 6 + 2 \cdot (- 2 \frac{- 1}{2 \cdot 3}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.2.5

Rewrite the expression.

$- 6 - 2 (\frac{- 1}{3}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$- 6 - 2 (\frac{- 1}{3}) - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.3

Combine $- 2$ and $\frac{- 1}{3}$ .

$- 6 + \frac{- 2 \cdot - 1}{3} - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.4

Multiply $- 2$ by $- 1$ .

$- 6 + \frac{2}{3} - 4 \frac{5 z}{6} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.5

Cancel the common factor of $2$ .

Tap for more steps...

Step 4.2.1.1.5.1

Factor $2$ out of $- 4$ .

$- 6 + \frac{2}{3} + 2 (- 2) (\frac{5 z}{6}) + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.5.2

Factor $2$ out of $6$ .

$- 6 + \frac{2}{3} + 2 \cdot (- 2 \frac{5 z}{2 \cdot 3}) + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.5.3

Cancel the common factor.

$- 6 + \frac{2}{3} + 2 \cdot (- 2 \frac{5 z}{2 \cdot 3}) + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.5.4

Rewrite the expression.

$- 6 + \frac{2}{3} - 2 \frac{5 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$- 6 + \frac{2}{3} - 2 \frac{5 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.6

Combine $- 2$ and $\frac{5 z}{3}$ .

$- 6 + \frac{2}{3} + \frac{- 2 (5 z)}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.7

Multiply $5$ by $- 2$ .

$- 6 + \frac{2}{3} + \frac{- 10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.1.8

Move the negative in front of the fraction.

$- 6 + \frac{2}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$- 6 + \frac{2}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.2

To write $- 6$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$- 6 \cdot \frac{3}{3} + \frac{2}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.3

Combine $- 6$ and $\frac{3}{3}$ .

$\frac{- 6 \cdot 3}{3} + \frac{2}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.4

Combine the numerators over the common denominator.

$\frac{- 6 \cdot 3 + 2}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.5

Simplify the numerator.

Tap for more steps...

Step 4.2.1.5.1

Multiply $- 6$ by $3$ .

$\frac{- 18 + 2}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.5.2

Add $- 18$ and $2$ .

$\frac{- 16}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$\frac{- 16}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.6

Move the negative in front of the fraction.

$- \frac{16}{3} - \frac{10 z}{3} + 4 z = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.7

To write $4 z$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$- \frac{16}{3} - \frac{10 z}{3} + 4 z \cdot \frac{3}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.8

Combine $4 z$ and $\frac{3}{3}$ .

$- \frac{16}{3} - \frac{10 z}{3} + \frac{4 z \cdot 3}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.9

Combine the numerators over the common denominator.

$- \frac{16}{3} + \frac{- 10 z + 4 z \cdot 3}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.10

Combine the numerators over the common denominator.

$\frac{- 16 - 10 z + 4 z \cdot 3}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.11

Multiply $3$ by $4$ .

$\frac{- 16 - 10 z + 12 z}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.12

Add $- 10 z$ and $12 z$ .

$\frac{- 16 + 2 z}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.13

Factor $2$ out of $- 16 + 2 z$ .

Tap for more steps...

Step 4.2.1.13.1

Factor $2$ out of $- 16$ .

$\frac{2 \cdot - 8 + 2 z}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.13.2

Factor $2$ out of $2 \cdot - 8 + 2 z$ .

$\frac{2 (- 8 + z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$\frac{2 (- 8 + z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.14

Rewrite $- 8$ as $- 1 (8)$ .

$\frac{2 (- 1 \cdot 8 + z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.15

Factor $- 1$ out of $z$ .

$\frac{2 (- 1 \cdot 8 - 1 (- z))}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.16

Factor $- 1$ out of $- 1 (8) - 1 (- z)$ .

$\frac{2 (- 1 (8 - z))}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.2.1.17

Move the negative in front of the fraction.

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 - y + z$

Step 4.3

Replace all occurrences of $y$ in $x = - 2 - y + z$ with $- \frac{1}{6} + \frac{5 z}{6}$ .

$x = - 2 - (- \frac{1}{6} + \frac{5 z}{6}) + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4

Simplify the right side.

Tap for more steps...

Step 4.4.1

Simplify $- 2 - (- \frac{1}{6} + \frac{5 z}{6}) + z$ .

Tap for more steps...

Step 4.4.1.1

Simplify each term.

Tap for more steps...

Step 4.4.1.1.1

Apply the distributive property.

$x = - 2 + \frac{1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.1.2

Multiply $- - \frac{1}{6}$ .

Tap for more steps...

Step 4.4.1.1.2.1

Multiply $- 1$ by $- 1$ .

$x = - 2 + 1 (\frac{1}{6}) - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.1.2.2

Multiply $\frac{1}{6}$ by $1$ .

$x = - 2 + \frac{1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 + \frac{1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - 2 + \frac{1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.2

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

$x = - 2 \cdot \frac{6}{6} + \frac{1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.3

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

$x = \frac{- 2 \cdot 6}{6} + \frac{1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.4

Combine the numerators over the common denominator.

$x = \frac{- 2 \cdot 6 + 1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.5

Simplify the numerator.

Tap for more steps...

Step 4.4.1.5.1

Multiply $- 2$ by $6$ .

$x = \frac{- 12 + 1}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.5.2

Add $- 12$ and $1$ .

$x = \frac{- 11}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = \frac{- 11}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.6

Move the negative in front of the fraction.

$x = - \frac{11}{6} - \frac{5 z}{6} + z$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.7

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

$x = - \frac{11}{6} - \frac{5 z}{6} + z \cdot \frac{6}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.8

Simplify terms.

Tap for more steps...

Step 4.4.1.8.1

Combine $z$ and $\frac{6}{6}$ .

$x = - \frac{11}{6} - \frac{5 z}{6} + \frac{z \cdot 6}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.8.2

Combine the numerators over the common denominator.

$x = - \frac{11}{6} + \frac{- 5 z + z \cdot 6}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.8.3

Combine the numerators over the common denominator.

$x = \frac{- 11 - 5 z + z \cdot 6}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = \frac{- 11 - 5 z + z \cdot 6}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.9

Move $6$ to the left of $z$ .

$x = \frac{- 11 - 5 z + 6 z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.10

Simplify terms.

Tap for more steps...

Step 4.4.1.10.1

Add $- 5 z$ and $6 z$ .

$x = \frac{- 11 + z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.10.2

Rewrite $- 11$ as $- 1 (11)$ .

$x = \frac{- 1 \cdot 11 + z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.10.3

Factor $- 1$ out of $z$ .

$x = \frac{- 1 \cdot 11 - 1 (- z)}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.10.4

Factor $- 1$ out of $- 1 (11) - 1 (- z)$ .

$x = \frac{- 1 (11 - z)}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 4.4.1.10.5

Move the negative in front of the fraction.

$x = - \frac{11 - z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - \frac{11 - z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - \frac{11 - z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - \frac{11 - z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - \frac{11 - z}{6}$

$- \frac{2 (8 - z)}{3} = 6$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5

Solve for $z$ in $- \frac{2 (8 - z)}{3} = 6$ .

Tap for more steps...

Step 5.1

Multiply both sides of the equation by $- \frac{3}{2}$ .

$- \frac{3}{2} \cdot (- \frac{2 (8 - z)}{3}) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2

Simplify both sides of the equation.

Tap for more steps...

Step 5.2.1

Simplify the left side.

Tap for more steps...

Step 5.2.1.1

Simplify $- \frac{3}{2} (- \frac{2 (8 - z)}{3})$ .

Tap for more steps...

Step 5.2.1.1.1

Cancel the common factor of $3$ .

Tap for more steps...

Step 5.2.1.1.1.1

Move the leading negative in $- \frac{3}{2}$ into the numerator.

$\frac{- 3}{2} \cdot (- \frac{2 (8 - z)}{3}) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.1.2

Move the leading negative in $- \frac{2 (8 - z)}{3}$ into the numerator.

$\frac{- 3}{2} \cdot \frac{- 2 (8 - z)}{3} = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.1.3

Factor $3$ out of $- 3$ .

$\frac{3 (- 1)}{2} \cdot \frac{- 2 (8 - z)}{3} = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.1.4

Cancel the common factor.

$\frac{3 \cdot - 1}{2} \cdot \frac{- 2 (8 - z)}{3} = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.1.5

Rewrite the expression.

$\frac{- 1}{2} \cdot (- 2 (8 - z)) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$\frac{- 1}{2} \cdot (- 2 (8 - z)) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.2

Cancel the common factor of $2$ .

Tap for more steps...

Step 5.2.1.1.2.1

Factor $2$ out of $- 2 (8 - z)$ .

$\frac{- 1}{2} \cdot (2 (- (8 - z))) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.2.2

Cancel the common factor.

$\frac{- 1}{2} \cdot (2 (- (8 - z))) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.2.3

Rewrite the expression.

$8 - z = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.3

Multiply.

Tap for more steps...

Step 5.2.1.1.3.1

Multiply $- 1$ by $- 1$ .

$1 (8 - z) = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.1.1.3.2

Multiply $8 - z$ by $1$ .

$8 - z = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - \frac{3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.2

Simplify the right side.

Tap for more steps...

Step 5.2.2.1

Simplify $- \frac{3}{2} \cdot 6$ .

Tap for more steps...

Step 5.2.2.1.1

Cancel the common factor of $2$ .

Tap for more steps...

Step 5.2.2.1.1.1

Move the leading negative in $- \frac{3}{2}$ into the numerator.

$8 - z = \frac{- 3}{2} \cdot 6$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.2.1.1.2

Factor $2$ out of $6$ .

$8 - z = \frac{- 3}{2} \cdot (2 (3))$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.2.1.1.3

Cancel the common factor.

$8 - z = \frac{- 3}{2} \cdot (2 \cdot 3)$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.2.1.1.4

Rewrite the expression.

$8 - z = - 3 \cdot 3$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - 3 \cdot 3$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.2.2.1.2

Multiply $- 3$ by $3$ .

$8 - z = - 9$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - 9$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - 9$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$8 - z = - 9$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.3

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

Tap for more steps...

Step 5.3.1

Subtract $8$ from both sides of the equation.

$- z = - 9 - 8$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.3.2

Subtract $8$ from $- 9$ .

$- z = - 17$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$- z = - 17$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.4

Divide each term in $- z = - 17$ by $- 1$ and simplify.

Tap for more steps...

Step 5.4.1

Divide each term in $- z = - 17$ by $- 1$ .

$\frac{- z}{- 1} = \frac{- 17}{- 1}$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.4.2

Simplify the left side.

Tap for more steps...

Step 5.4.2.1

Dividing two negative values results in a positive value.

$\frac{z}{1} = \frac{- 17}{- 1}$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.4.2.2

Divide $z$ by $1$ .

$z = \frac{- 17}{- 1}$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$z = \frac{- 17}{- 1}$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 5.4.3

Simplify the right side.

Tap for more steps...

Step 5.4.3.1

Divide $- 17$ by $- 1$ .

$z = 17$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$z = 17$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$z = 17$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$z = 17$

$x = - \frac{11 - z}{6}$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 6

Replace all occurrences of $z$ with $17$ in each equation.

Tap for more steps...

Step 6.1

Replace all occurrences of $z$ in $x = - \frac{11 - z}{6}$ with $17$ .

$x = - \frac{11 - (17)}{6}$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 6.2

Simplify the right side.

Tap for more steps...

Step 6.2.1

Simplify $- \frac{11 - (17)}{6}$ .

Tap for more steps...

Step 6.2.1.1

Simplify the numerator.

Tap for more steps...

Step 6.2.1.1.1

Multiply $- 1$ by $17$ .

$x = - \frac{11 - 17}{6}$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 6.2.1.1.2

Subtract $17$ from $11$ .

$x = - \frac{- 6}{6}$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = - \frac{- 6}{6}$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 6.2.1.2

Simplify the expression.

Tap for more steps...

Step 6.2.1.2.1

Divide $- 6$ by $6$ .

$x = 1$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 6.2.1.2.2

Multiply $- 1$ by $- 1$ .

$x = 1$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = 1$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = 1$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

$x = 1$

$z = 17$

$y = - \frac{1}{6} + \frac{5 z}{6}$

Step 6.3

Replace all occurrences of $z$ in $y = - \frac{1}{6} + \frac{5 z}{6}$ with $17$ .

$y = - \frac{1}{6} + \frac{5 (17)}{6}$

$x = 1$

$z = 17$

Step 6.4

Simplify the right side.

Tap for more steps...

Step 6.4.1

Simplify $- \frac{1}{6} + \frac{5 (17)}{6}$ .

Tap for more steps...

Step 6.4.1.1

Combine the numerators over the common denominator.

$y = \frac{- 1 + 5 (17)}{6}$

$x = 1$

$z = 17$

Step 6.4.1.2

Simplify the expression.

Tap for more steps...

Step 6.4.1.2.1

Multiply $5$ by $17$ .

$y = \frac{- 1 + 85}{6}$

$x = 1$

$z = 17$

Step 6.4.1.2.2

Add $- 1$ and $85$ .

$y = \frac{84}{6}$

$x = 1$

$z = 17$

Step 6.4.1.2.3

Divide $84$ by $6$ .

$y = 14$

$x = 1$

$z = 17$

$y = 14$

$x = 1$

$z = 17$

$y = 14$

$x = 1$

$z = 17$

$y = 14$

$x = 1$

$z = 17$

$y = 14$

$x = 1$

$z = 17$

Step 7

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

$(1, 14, 17)$

Step 8

The result can be shown in multiple forms.

Point Form:

$(1, 14, 17)$

Equation Form:

$x = 1, y = 14, z = 17$