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OpenStudy (anonymous):
Solve the system 2x + 2y = –6 and 3x – 2y = 11 by using graph paper or graphing technology. What is the solution to the system?
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OpenStudy (mathmate):
If you add up the two equations (possibly mentally), you will find that it says 5x=5, or x=1. So y=-4 by substitution.
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