left{begin{array}{l}x-2 y-2 z=-1 x-y+z=-2 2 x+y+3 z=1end{array}right.

Question

left{begin{array}{l}x-2 y-2 z=-1  x-y+z=-2  2 x+y+3 z=1end{array}right.

Accepted Answer

Step:1 ：(left{begin{array}{l}x-2 y-2 z=-1  x-y+z=-2  2 x+y+3 z=1end{array}right.)Step:2 ：(A = begin{bmatrix} 1 & -2 & -2  1 & -1 & 1  2 & 1 & 3 end{bmatrix}, B = begin{bmatrix} -1  -2  1 end{bmatrix})Step:3 ：(text{solution} = begin{bmatrix} 1  2  -1 end{bmatrix})Step:4 ：(boxed{x = 1, y = 2, z = -1})

Answer

Step: 1 ：(left{begin{array}{l}x-2 y-2 z=-1  x-y+z=-2  2 x+y+3 z=1end{array}right.)Step: 2 ：(A = begin{bmatrix} 1 & -2 & -2  1 & -1 & 1  2 & 1 & 3 end{bmatrix}, B = begin{bmatrix} -1  -2  1 end{bmatrix})Step: 3 ：(text{solution} = begin{bmatrix} 1  2  -1 end{bmatrix})Step: 4 ：(boxed{x = 1, y = 2, z = -1})

$\left\{\begin{array}{l}x-2 y-2 z=-1 \\ x-y+z=-2 \\ 2 x+y+3 z=1\end{array}\right.$

Answer

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