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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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