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Question 144
Translate the system of equations into matrix form. {x+y+8z=−19x+4y−z=−8x4+y2=6}\left\{ \begin{aligned}x + y + 8 z & = - 1 \\9 x + 4 y - z & = - 8 \\\frac { x } { 4 } + \frac { y } { 2 } & = 6\end{aligned} \right\}⎩⎨⎧x+y+8z9x+4y−z4x+2y=−1=−8=6⎭⎬⎫
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