Algebra Examples

$p x + q y = r$ , $2 p x - q y = 2 r$

Step 1

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$p x + q y = r, 2 p x - q y = 2 r$

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