Solve the system of equations.  x + y + z = -7  x - y + 3z = -132x + y + z = -9

A. {(-1, -2, -4)}
B. {(-4, -1, -2)}
C. {(-4, -2, -1)}
D. {(-2, -1, -4)}


Answer: D

Mathematics

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A.

B.

C.

D.

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A. x ? 4 B. x ? 4 C. x > 4 D. x < 4

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A. a6 = 
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