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Solve by Substitution x-2z=9 , y+8z=-5

$x - 2 z = 9$ , $y + 8 z = - 5$

Step 1

$x - 2 z = 9, y + 8 z = - 5$

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

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