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OpenStudy (anonymous):
3x - y = 7 6x - y = 10 When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated? A) 9x - 2y = 17 B) -3y = 24 C) -3x = -3 D) 9x = 17
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jhonyy9 (jhonyy9):
C. is right but can being right 3x=3 too so this is in case than multiplie first equation by -1 and assum it with second hope this will help you
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