Solve the system. w + 3x - 2y - z = -1 4w + x + y + 2z = 19-3w - x - 3y - 2z = -23 w - x - 3y - 2z = -15
A. {(2, 2, 3, 3)}
B. {(2 + z, 2 - 2z, 3 + 2z, z)}
C. {(1, 4, -1, 5)}
D. {(-1, 19, -23, -15)}
Answer: A
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C.
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