Solve the system by using the inverse of the coefficient matrix.3x + y - 2z - w = 8-x + 2y + z - 4w = -122x - 2y + 3z + w = 8-2x - y - z - 4w = -7

A. ?
B. {(1, -3, -2, -1)}
C. {(3, 2, 1, -1)}
D. {(3, -2, -1, 1)}


Answer: D

Mathematics

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