Precalculus Examples

$x + y + z = - 17$ , $y - 3 z = 0$

Step 1

Solve the equation for $x$ .

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Step 1.1

Add $3 z$ and $z$ .

$x + 4 z = - 17$

$y = 3 z$

Step 1.2

Subtract $4 z$ from both sides of the equation.

$x = - 17 - 4 z$

$y = 3 z$

$x = - 17 - 4 z$

$y = 3 z$

Step 2

Simplify the right side.

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Step 2.1

Reorder $- 17$ and $- 4 z$ .

$x = - 4 z - 17$

$y = 3 z$

$x = - 4 z - 17$

$y = 3 z$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$