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OpenStudy (anonymous):
Eliminate the "z" variable in the last two equations by finding opposite coefficients and adding. What is the resulting equation? x + 3y + 2z = -16 2x - y + 2z = -15 2x - 2y - z = 1 A.4x - 3y = -14 B.4x + y = -14 C.6x + 5y = 13 D.6x - 5y = -13
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