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Solve the System {y+4z=182x+y2z=124x2z=4\left\{ \begin{array} { r r } y + 4 z & = 18 \\2 x + y - 2 z & = - 12 \\- 4 x - 2 z & = 4\end{array} \right.

question 109

Multiple Choice

Solve the system.
- {y+4z=182x+y2z=124x2z=4\left\{ \begin{array} { r r } y + 4 z & = 18 \\2 x + y - 2 z & = - 12 \\- 4 x - 2 z & = 4\end{array} \right.


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