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OpenStudy (anonymous):
For the following system, if you isolated x in the second equation to use the Substitution Method, what expression would you substitute into the first equation? 2x + y = 9 −x − y = −8 A. –8 + y B. –8 − y C. 8 + y D. 8 – y I think its B, is that correct?
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OpenStudy (mertsj):
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