In Exercises 2932, write each linear system as a matrix equation in the form AX = B,
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In Exercises 29–32, write each linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the constant matrix.
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x + 4y z = 3 = 5 = 12 x + 3y2z 2x + 7y5z
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