Question: In Problem, write each system as a matrix equation and solve using the inverse coefficient matrix. Use a graphing calculator or computer to perform the

In Problem, write each system as a matrix equation and solve using the inverse coefficient matrix. Use a graphing calculator or computer to perform the necessary calculations.
5x1 + 3x2 - 2x3 = 112
7x1 + 5x2 = 70
3x1 + x2 - 9x3 = 96

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