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OpenStudy (cherie_magee):
For the following system, use the second equation to make a substitution for x in the first equation. 3x + 2y = 7 x - y + 3 = 0 What is the resulting equation? 3x - y - 3 + 2y = 7 3(y - 3) + 2y = 7 3y - 3 + 2y = 7
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OpenStudy (anonymous):
first x=y-3 then replace it in the other equation 3(y-3)+2y=7
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