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Use a Graphing Utility and Cramer's Rule to Solve (If $\left\{ \begin{array} { r } x + 2 y - z = - 9 \\2 x - 2 y - 2 z = 0 \\- x + 3 y + 4 z = 0\end{array} \right.$

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Use a graphing utility and Cramer's Rule to solve (if possible) the system of equations.
$\left\{ \begin{array} { r } x + 2 y - z = - 9 \\2 x - 2 y - 2 z = 0 \\- x + 3 y + 4 z = 0\end{array} \right.$

Use a Graphing Utility and Cramer's Rule to Solve (If {x+2y−z=−92x−2y−2z=0−x+3y+4z=0\left\{ \begin{array} { r } x + 2 y - z = - 9 \\2 x - 2 y - 2 z = 0 \\- x + 3 y + 4 z = 0\end{array} \right.⎩⎨⎧​x+2y−z=−92x−2y−2z=0−x+3y+4z=0​

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Use a Graphing Utility and Cramer's Rule to Solve (If $\left\{ \begin{array} { r } x + 2 y - z = - 9 \\2 x - 2 y - 2 z = 0 \\- x + 3 y + 4 z = 0\end{array} \right.$

Correct Answer:
Verified