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OpenStudy (anonymous):
Which equation shows the substitution method being used to solve the system of linear equations? x – y = 7 x = y + 3 A. x – y = y + 3 B. x = (7 – x) + 3 C. (y + 3) – y = 7 D. x – (y + 3) = 7
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OpenStudy (mathstudent55):
The second equation is solved for x. x is equal to y + 3. Do you see a choice in which the first equation is used and where x has been replaced by y + 3?
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