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Solve Using a Matrix by Row Operations -1/2x+1/2y+1/7z=-53/141/2x-1/2y+1/4z=3 1/4x+1/5y+1/3z=23/15

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

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