OpenStudy (anonymous):

Solve the following system of equations. x + 3y - z = 2 x - 2y + 3z = 7 x + 2y - 5z = -21 A. (2, 3, 5) B. (-2, 3, 5) C. (2, -3, 5) D. (2, 3, -5)

3 years ago
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