Solve the system of equations.x - y + z = 0x + y + z = 2x + y - z = 10

A. {(5, -4, 1)}
B. ?
C. {(-4, 5, 1)}
D. {(5, 1, -4)}


Answer: D

Mathematics

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B. ?
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A.
B. 6! 
C. 6 
D. 1 

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A. -1.8 B. -0.8 C. -18 D. -8

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Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(3 - 3)2

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