Question: In Problems 7578, use the inverse matrix found in Problem 71 to solve the following systems of equations. Round answers to two decimal places. 25x

In Problems 75–78, use the inverse matrix found in Problem 71 to solve the following systems of equations. Round answers to two decimal places. 25x + 61y - 18x - 12y + 3x + 4y -

25x + 61y - 18x - 12y + 3x + 4y - + 12z = 15 72 = -3 2 = 12 2

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