Finite Math Examples

$x + 2 y + z = 72$ , $2 x + y + z = 66$ , $3 x + y + 2 z = 102$ , $c - 60 x - 48 y - 42 z = 0$

Step 1

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

Tap for more steps...

Step 1.1

Subtract $2 y$ from both sides of the equation.

$x + z = 72 - 2 y$

$2 x + y + z = 66$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 1.2

Subtract $z$ from both sides of the equation.

$x = 72 - 2 y - z$

$2 x + y + z = 66$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

$x = 72 - 2 y - z$

$2 x + y + z = 66$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2

Replace all occurrences of $x$ with $72 - 2 y - z$ in each equation.

Tap for more steps...

Step 2.1

Replace all occurrences of $x$ in $2 x + y + z = 66$ with $72 - 2 y - z$ .

$2 (72 - 2 y - z) + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.2

Simplify the left side.

Tap for more steps...

Step 2.2.1

Simplify $2 (72 - 2 y - z) + y + z$ .

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.

$2 \cdot 72 + 2 (- 2 y) + 2 (- z) + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.2.1.1.2

Simplify.

Tap for more steps...

Step 2.2.1.1.2.1

Multiply $2$ by $72$ .

$144 + 2 (- 2 y) + 2 (- z) + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.2.1.1.2.2

Multiply $- 2$ by $2$ .

$144 - 4 y + 2 (- z) + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.2.1.1.2.3

Multiply $- 1$ by $2$ .

$144 - 4 y - 2 z + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

$144 - 4 y - 2 z + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

$144 - 4 y - 2 z + y + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.2.1.2

Simplify by adding terms.

Tap for more steps...

Step 2.2.1.2.1

Add $- 4 y$ and $y$ .

$144 - 3 y - 2 z + z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.2.1.2.2

Add $- 2 z$ and $z$ .

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$3 x + y + 2 z = 102$

$c - 60 x - 48 y - 42 z = 0$

Step 2.3

Replace all occurrences of $x$ in $3 x + y + 2 z = 102$ with $72 - 2 y - z$ .

$3 (72 - 2 y - z) + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.4

Simplify the left side.

Tap for more steps...

Step 2.4.1

Simplify $3 (72 - 2 y - z) + y + 2 z$ .

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.

$3 \cdot 72 + 3 (- 2 y) + 3 (- z) + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.4.1.1.2

Simplify.

Tap for more steps...

Step 2.4.1.1.2.1

Multiply $3$ by $72$ .

$216 + 3 (- 2 y) + 3 (- z) + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.4.1.1.2.2

Multiply $- 2$ by $3$ .

$216 - 6 y + 3 (- z) + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.4.1.1.2.3

Multiply $- 1$ by $3$ .

$216 - 6 y - 3 z + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

$216 - 6 y - 3 z + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

$216 - 6 y - 3 z + y + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.4.1.2

Simplify by adding terms.

Tap for more steps...

Step 2.4.1.2.1

Add $- 6 y$ and $y$ .

$216 - 5 y - 3 z + 2 z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.4.1.2.2

Add $- 3 z$ and $2 z$ .

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 60 x - 48 y - 42 z = 0$

Step 2.5

Replace all occurrences of $x$ in $c - 60 x - 48 y - 42 z = 0$ with $72 - 2 y - z$ .

$c - 60 (72 - 2 y - z) - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 2.6

Simplify the left side.

Tap for more steps...

Step 2.6.1

Simplify $c - 60 (72 - 2 y - z) - 48 y - 42 z$ .

Tap for more steps...

Step 2.6.1.1

Simplify each term.

Tap for more steps...

Step 2.6.1.1.1

Apply the distributive property.

$c - 60 \cdot 72 - 60 (- 2 y) - 60 (- z) - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 2.6.1.1.2

Simplify.

Tap for more steps...

Step 2.6.1.1.2.1

Multiply $- 60$ by $72$ .

$c - 4320 - 60 (- 2 y) - 60 (- z) - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 2.6.1.1.2.2

Multiply $- 2$ by $- 60$ .

$c - 4320 + 120 y - 60 (- z) - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 2.6.1.1.2.3

Multiply $- 1$ by $- 60$ .

$c - 4320 + 120 y + 60 z - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 4320 + 120 y + 60 z - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 4320 + 120 y + 60 z - 48 y - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 2.6.1.2

Simplify by adding terms.

Tap for more steps...

Step 2.6.1.2.1

Subtract $48 y$ from $120 y$ .

$c - 4320 + 72 y + 60 z - 42 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 2.6.1.2.2

Subtract $42 z$ from $60 z$ .

$c - 4320 + 72 y + 18 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 4320 + 72 y + 18 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 4320 + 72 y + 18 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 4320 + 72 y + 18 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c - 4320 + 72 y + 18 z = 0$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 3

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

Tap for more steps...

Step 3.1

Add $4320$ to both sides of the equation.

$c + 72 y + 18 z = 4320$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 3.2

Subtract $72 y$ from both sides of the equation.

$c + 18 z = 4320 - 72 y$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 3.3

Subtract $18 z$ from both sides of the equation.

$c = 4320 - 72 y - 18 z$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = 4320 - 72 y - 18 z$

$216 - 5 y - z = 102$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4

Solve for $y$ in $216 - 5 y - z = 102$ .

Tap for more steps...

Step 4.1

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

Tap for more steps...

Step 4.1.1

Subtract $216$ from both sides of the equation.

$- 5 y - z = 102 - 216$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.1.2

Add $z$ to both sides of the equation.

$- 5 y = 102 - 216 + z$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.1.3

Subtract $216$ from $102$ .

$- 5 y = - 114 + z$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$- 5 y = - 114 + z$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.2

Divide each term in $- 5 y = - 114 + z$ by $- 5$ and simplify.

Tap for more steps...

Step 4.2.1

Divide each term in $- 5 y = - 114 + z$ by $- 5$ .

$\frac{- 5 y}{- 5} = \frac{- 114}{- 5} + \frac{z}{- 5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.2.2

Simplify the left side.

Tap for more steps...

Step 4.2.2.1

Cancel the common factor of $- 5$ .

Tap for more steps...

Step 4.2.2.1.1

Cancel the common factor.

$\frac{- 5 y}{- 5} = \frac{- 114}{- 5} + \frac{z}{- 5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.2.2.1.2

Divide $y$ by $1$ .

$y = \frac{- 114}{- 5} + \frac{z}{- 5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$y = \frac{- 114}{- 5} + \frac{z}{- 5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$y = \frac{- 114}{- 5} + \frac{z}{- 5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.2.3

Simplify the right side.

Tap for more steps...

Step 4.2.3.1

Simplify each term.

Tap for more steps...

Step 4.2.3.1.1

Dividing two negative values results in a positive value.

$y = \frac{114}{5} + \frac{z}{- 5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 4.2.3.1.2

Move the negative in front of the fraction.

$y = \frac{114}{5} - \frac{z}{5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 4320 - 72 y - 18 z$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5

Replace all occurrences of $y$ with $\frac{114}{5} - \frac{z}{5}$ in each equation.

Tap for more steps...

Step 5.1

Replace all occurrences of $y$ in $c = 4320 - 72 y - 18 z$ with $\frac{114}{5} - \frac{z}{5}$ .

$c = 4320 - 72 (\frac{114}{5} - \frac{z}{5}) - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2

Simplify the right side.

Tap for more steps...

Step 5.2.1

Simplify $4320 - 72 (\frac{114}{5} - \frac{z}{5}) - 18 z$ .

Tap for more steps...

Step 5.2.1.1

Simplify each term.

Tap for more steps...

Step 5.2.1.1.1

Apply the distributive property.

$c = 4320 - 72 (\frac{114}{5}) - 72 (- \frac{z}{5}) - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.1.2

Multiply $- 72 (\frac{114}{5})$ .

Tap for more steps...

Step 5.2.1.1.2.1

Combine $- 72$ and $\frac{114}{5}$ .

$c = 4320 + \frac{- 72 \cdot 114}{5} - 72 (- \frac{z}{5}) - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.1.2.2

Multiply $- 72$ by $114$ .

$c = 4320 + \frac{- 8208}{5} - 72 (- \frac{z}{5}) - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = 4320 + \frac{- 8208}{5} - 72 (- \frac{z}{5}) - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.1.3

Multiply $- 72 (- \frac{z}{5})$ .

Tap for more steps...

Step 5.2.1.1.3.1

Multiply $- 1$ by $- 72$ .

$c = 4320 + \frac{- 8208}{5} + 72 (\frac{z}{5}) - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.1.3.2

Combine $72$ and $\frac{z}{5}$ .

$c = 4320 + \frac{- 8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = 4320 + \frac{- 8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.1.4

Move the negative in front of the fraction.

$c = 4320 - \frac{8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = 4320 - \frac{8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.2

To write $4320$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$c = 4320 \cdot \frac{5}{5} - \frac{8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.3

Combine $4320$ and $\frac{5}{5}$ .

$c = \frac{4320 \cdot 5}{5} - \frac{8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.4

Combine the numerators over the common denominator.

$c = \frac{4320 \cdot 5 - 8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.5

Simplify the numerator.

Tap for more steps...

Step 5.2.1.5.1

Multiply $4320$ by $5$ .

$c = \frac{21600 - 8208}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.5.2

Subtract $8208$ from $21600$ .

$c = \frac{13392}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = \frac{13392}{5} + \frac{72 z}{5} - 18 z$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.6

To write $- 18 z$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$c = \frac{13392}{5} + \frac{72 z}{5} - 18 z \cdot \frac{5}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.7

Combine $- 18 z$ and $\frac{5}{5}$ .

$c = \frac{13392}{5} + \frac{72 z}{5} + \frac{- 18 z \cdot 5}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.8

Combine the numerators over the common denominator.

$c = \frac{13392}{5} + \frac{72 z - 18 z \cdot 5}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.9

Combine the numerators over the common denominator.

$c = \frac{13392 + 72 z - 18 z \cdot 5}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.10

Multiply $5$ by $- 18$ .

$c = \frac{13392 + 72 z - 90 z}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.11

Subtract $90 z$ from $72 z$ .

$c = \frac{13392 - 18 z}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.12

Factor $18$ out of $13392 - 18 z$ .

Tap for more steps...

Step 5.2.1.12.1

Factor $18$ out of $13392$ .

$c = \frac{18 (744) - 18 z}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.12.2

Factor $18$ out of $- 18 z$ .

$c = \frac{18 (744) + 18 (- z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.2.1.12.3

Factor $18$ out of $18 (744) + 18 (- z)$ .

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$144 - 3 y - z = 66$

$x = 72 - 2 y - z$

Step 5.3

Replace all occurrences of $y$ in $144 - 3 y - z = 66$ with $\frac{114}{5} - \frac{z}{5}$ .

$144 - 3 (\frac{114}{5} - \frac{z}{5}) - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4

Simplify the left side.

Tap for more steps...

Step 5.4.1

Simplify $144 - 3 (\frac{114}{5} - \frac{z}{5}) - z$ .

Tap for more steps...

Step 5.4.1.1

Simplify each term.

Tap for more steps...

Step 5.4.1.1.1

Apply the distributive property.

$144 - 3 (\frac{114}{5}) - 3 (- \frac{z}{5}) - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.1.2

Multiply $- 3 (\frac{114}{5})$ .

Tap for more steps...

Step 5.4.1.1.2.1

Combine $- 3$ and $\frac{114}{5}$ .

$144 + \frac{- 3 \cdot 114}{5} - 3 (- \frac{z}{5}) - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.1.2.2

Multiply $- 3$ by $114$ .

$144 + \frac{- 342}{5} - 3 (- \frac{z}{5}) - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$144 + \frac{- 342}{5} - 3 (- \frac{z}{5}) - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.1.3

Multiply $- 3 (- \frac{z}{5})$ .

Tap for more steps...

Step 5.4.1.1.3.1

Multiply $- 1$ by $- 3$ .

$144 + \frac{- 342}{5} + 3 (\frac{z}{5}) - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.1.3.2

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

$144 + \frac{- 342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$144 + \frac{- 342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.1.4

Move the negative in front of the fraction.

$144 - \frac{342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$144 - \frac{342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.2

To write $144$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$144 \cdot \frac{5}{5} - \frac{342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.3

Combine $144$ and $\frac{5}{5}$ .

$\frac{144 \cdot 5}{5} - \frac{342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.4

Combine the numerators over the common denominator.

$\frac{144 \cdot 5 - 342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.5

Simplify the numerator.

Tap for more steps...

Step 5.4.1.5.1

Multiply $144$ by $5$ .

$\frac{720 - 342}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.5.2

Subtract $342$ from $720$ .

$\frac{378}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$\frac{378}{5} + \frac{3 z}{5} - z = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.6

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

$\frac{378}{5} + \frac{3 z}{5} - z \cdot \frac{5}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.7

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

$\frac{378}{5} + \frac{3 z}{5} + \frac{- z \cdot 5}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.8

Combine the numerators over the common denominator.

$\frac{378}{5} + \frac{3 z - z \cdot 5}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.9

Combine the numerators over the common denominator.

$\frac{378 + 3 z - z \cdot 5}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.10

Multiply $5$ by $- 1$ .

$\frac{378 + 3 z - 5 z}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.11

Subtract $5 z$ from $3 z$ .

$\frac{378 - 2 z}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.12

Factor $2$ out of $378 - 2 z$ .

Tap for more steps...

Step 5.4.1.12.1

Factor $2$ out of $378$ .

$\frac{2 (189) - 2 z}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.12.2

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

$\frac{2 (189) + 2 (- z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.4.1.12.3

Factor $2$ out of $2 (189) + 2 (- z)$ .

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - 2 y - z$

Step 5.5

Replace all occurrences of $y$ in $x = 72 - 2 y - z$ with $\frac{114}{5} - \frac{z}{5}$ .

$x = 72 - 2 (\frac{114}{5} - \frac{z}{5}) - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6

Simplify the right side.

Tap for more steps...

Step 5.6.1

Simplify $72 - 2 (\frac{114}{5} - \frac{z}{5}) - z$ .

Tap for more steps...

Step 5.6.1.1

Simplify each term.

Tap for more steps...

Step 5.6.1.1.1

Apply the distributive property.

$x = 72 - 2 (\frac{114}{5}) - 2 (- \frac{z}{5}) - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.1.2

Multiply $- 2 (\frac{114}{5})$ .

Tap for more steps...

Step 5.6.1.1.2.1

Combine $- 2$ and $\frac{114}{5}$ .

$x = 72 + \frac{- 2 \cdot 114}{5} - 2 (- \frac{z}{5}) - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.1.2.2

Multiply $- 2$ by $114$ .

$x = 72 + \frac{- 228}{5} - 2 (- \frac{z}{5}) - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 + \frac{- 228}{5} - 2 (- \frac{z}{5}) - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.1.3

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

Tap for more steps...

Step 5.6.1.1.3.1

Multiply $- 1$ by $- 2$ .

$x = 72 + \frac{- 228}{5} + 2 (\frac{z}{5}) - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.1.3.2

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

$x = 72 + \frac{- 228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 + \frac{- 228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.1.4

Move the negative in front of the fraction.

$x = 72 - \frac{228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 72 - \frac{228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.2

To write $72$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$x = 72 \cdot \frac{5}{5} - \frac{228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.3

Combine $72$ and $\frac{5}{5}$ .

$x = \frac{72 \cdot 5}{5} - \frac{228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.4

Combine the numerators over the common denominator.

$x = \frac{72 \cdot 5 - 228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.5

Simplify the numerator.

Tap for more steps...

Step 5.6.1.5.1

Multiply $72$ by $5$ .

$x = \frac{360 - 228}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.5.2

Subtract $228$ from $360$ .

$x = \frac{132}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = \frac{132}{5} + \frac{2 z}{5} - z$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.6

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

$x = \frac{132}{5} + \frac{2 z}{5} - z \cdot \frac{5}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.7

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

$x = \frac{132}{5} + \frac{2 z}{5} + \frac{- z \cdot 5}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.8

Combine the numerators over the common denominator.

$x = \frac{132}{5} + \frac{2 z - z \cdot 5}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.9

Combine the numerators over the common denominator.

$x = \frac{132 + 2 z - z \cdot 5}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.10

Multiply $5$ by $- 1$ .

$x = \frac{132 + 2 z - 5 z}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.11

Subtract $5 z$ from $2 z$ .

$x = \frac{132 - 3 z}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.12

Factor $3$ out of $132 - 3 z$ .

Tap for more steps...

Step 5.6.1.12.1

Factor $3$ out of $132$ .

$x = \frac{3 (44) - 3 z}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.12.2

Factor $3$ out of $- 3 z$ .

$x = \frac{3 (44) + 3 (- z)}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 5.6.1.12.3

Factor $3$ out of $3 (44) + 3 (- z)$ .

$x = \frac{3 (44 - z)}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = \frac{3 (44 - z)}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = \frac{3 (44 - z)}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = \frac{3 (44 - z)}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = \frac{3 (44 - z)}{5}$

$\frac{2 (189 - z)}{5} = 66$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6

Solve for $z$ in $\frac{2 (189 - z)}{5} = 66$ .

Tap for more steps...

Step 6.1

Multiply both sides by $5$ .

$\frac{2 (189 - z)}{5} \cdot 5 = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2

Simplify.

Tap for more steps...

Step 6.2.1

Simplify the left side.

Tap for more steps...

Step 6.2.1.1

Simplify $\frac{2 (189 - z)}{5} \cdot 5$ .

Tap for more steps...

Step 6.2.1.1.1

Cancel the common factor of $5$ .

Tap for more steps...

Step 6.2.1.1.1.1

Cancel the common factor.

$\frac{2 (189 - z)}{5} \cdot 5 = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2.1.1.1.2

Rewrite the expression.

$2 (189 - z) = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$2 (189 - z) = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2.1.1.2

Apply the distributive property.

$2 \cdot 189 + 2 (- z) = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2.1.1.3

Simplify the expression.

Tap for more steps...

Step 6.2.1.1.3.1

Multiply $2$ by $189$ .

$378 + 2 (- z) = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2.1.1.3.2

Multiply $- 1$ by $2$ .

$378 - 2 z = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2.1.1.3.3

Reorder $378$ and $- 2 z$ .

$- 2 z + 378 = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$- 2 z + 378 = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$- 2 z + 378 = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$- 2 z + 378 = 66 \cdot 5$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.2.2

Simplify the right side.

Tap for more steps...

Step 6.2.2.1

Multiply $66$ by $5$ .

$- 2 z + 378 = 330$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$- 2 z + 378 = 330$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$- 2 z + 378 = 330$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.3

Solve for $z$ .

Tap for more steps...

Step 6.3.1

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

Tap for more steps...

Step 6.3.1.1

Subtract $378$ from both sides of the equation.

$- 2 z = 330 - 378$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.3.1.2

Subtract $378$ from $330$ .

$- 2 z = - 48$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$- 2 z = - 48$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.3.2

Divide each term in $- 2 z = - 48$ by $- 2$ and simplify.

Tap for more steps...

Step 6.3.2.1

Divide each term in $- 2 z = - 48$ by $- 2$ .

$\frac{- 2 z}{- 2} = \frac{- 48}{- 2}$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.3.2.2

Simplify the left side.

Tap for more steps...

Step 6.3.2.2.1

Cancel the common factor of $- 2$ .

Tap for more steps...

Step 6.3.2.2.1.1

Cancel the common factor.

$\frac{- 2 z}{- 2} = \frac{- 48}{- 2}$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.3.2.2.1.2

Divide $z$ by $1$ .

$z = \frac{- 48}{- 2}$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$z = \frac{- 48}{- 2}$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$z = \frac{- 48}{- 2}$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 6.3.2.3

Simplify the right side.

Tap for more steps...

Step 6.3.2.3.1

Divide $- 48$ by $- 2$ .

$z = 24$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$z = 24$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$z = 24$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$z = 24$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$z = 24$

$x = \frac{3 (44 - z)}{5}$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7

Replace all occurrences of $z$ with $24$ in each equation.

Tap for more steps...

Step 7.1

Replace all occurrences of $z$ in $x = \frac{3 (44 - z)}{5}$ with $24$ .

$x = \frac{3 (44 - (24))}{5}$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.2

Simplify the right side.

Tap for more steps...

Step 7.2.1

Simplify $\frac{3 (44 - (24))}{5}$ .

Tap for more steps...

Step 7.2.1.1

Simplify the numerator.

Tap for more steps...

Step 7.2.1.1.1

Multiply $- 1$ by $24$ .

$x = \frac{3 (44 - 24)}{5}$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.2.1.1.2

Subtract $24$ from $44$ .

$x = \frac{3 \cdot 20}{5}$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = \frac{3 \cdot 20}{5}$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.2.1.2

Simplify the expression.

Tap for more steps...

Step 7.2.1.2.1

Multiply $3$ by $20$ .

$x = \frac{60}{5}$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.2.1.2.2

Divide $60$ by $5$ .

$x = 12$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 12$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 12$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

$x = 12$

$z = 24$

$c = \frac{18 (744 - z)}{5}$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.3

Replace all occurrences of $z$ in $c = \frac{18 (744 - z)}{5}$ with $24$ .

$c = \frac{18 (744 - (24))}{5}$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.4

Simplify the right side.

Tap for more steps...

Step 7.4.1

Simplify $\frac{18 (744 - (24))}{5}$ .

Tap for more steps...

Step 7.4.1.1

Simplify the numerator.

Tap for more steps...

Step 7.4.1.1.1

Multiply $- 1$ by $24$ .

$c = \frac{18 (744 - 24)}{5}$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.4.1.1.2

Subtract $24$ from $744$ .

$c = \frac{18 \cdot 720}{5}$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

$c = \frac{18 \cdot 720}{5}$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.4.1.2

Simplify the expression.

Tap for more steps...

Step 7.4.1.2.1

Multiply $18$ by $720$ .

$c = \frac{12960}{5}$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.4.1.2.2

Divide $12960$ by $5$ .

$c = 2592$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 2592$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 2592$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

$c = 2592$

$x = 12$

$z = 24$

$y = \frac{114}{5} - \frac{z}{5}$

Step 7.5

Replace all occurrences of $z$ in $y = \frac{114}{5} - \frac{z}{5}$ with $24$ .

$y = \frac{114}{5} - \frac{24}{5}$

$c = 2592$

$x = 12$

$z = 24$

Step 7.6

Simplify the right side.

Tap for more steps...

Step 7.6.1

Simplify $\frac{114}{5} - \frac{24}{5}$ .

Tap for more steps...

Step 7.6.1.1

Combine the numerators over the common denominator.

$y = \frac{114 - 24}{5}$

$c = 2592$

$x = 12$

$z = 24$

Step 7.6.1.2

Simplify the expression.

Tap for more steps...

Step 7.6.1.2.1

Subtract $24$ from $114$ .

$y = \frac{90}{5}$

$c = 2592$

$x = 12$

$z = 24$

Step 7.6.1.2.2

Divide $90$ by $5$ .

$y = 18$

$c = 2592$

$x = 12$

$z = 24$

$y = 18$

$c = 2592$

$x = 12$

$z = 24$

$y = 18$

$c = 2592$

$x = 12$

$z = 24$

$y = 18$

$c = 2592$

$x = 12$

$z = 24$

$y = 18$

$c = 2592$

$x = 12$

$z = 24$

Step 8

List all of the solutions.

$y = 18, c = 2592, x = 12, z = 24$