Question: Solve by Cramers rule. Check by Gauss elimination and back substitution. Show details. 3x - 2y + z = 13 -2x + y + 4z

Solve by Cramer’s rule. Check by Gauss elimination and back substitution. Show details.

 3x  -   2y +  z =  13
-2x +    y + 4z =  11
    x + 4y -  5z = -31

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