Precalculus Examples

$x + y - z = 2$ , $x - 2 y + z = 5$

Step 1

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$x + y - z = 2, x - 2 y + z = 5$

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