Use the matrix capabilities of a graphing utility to write the augmented matrix corresponding to the system

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Use the matrix capabilities of a graphing utility to write the augmented matrix corresponding to the system of linear equations in reduced row-echelon form. Then solve the system, if possible.
1.
y + 5z – 2w = -44 х+ бу + 4z — w%3D - 15

2.

4x + 12y + 2z = x + 6y + 47 x + 6y + z = (-2x – 10y – 2z = – 10 20 12
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