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OpenStudy (anonymous):
PLEASE HELP Solve the linear system by graphing; x-y=0 5x+2y=-7
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OpenStudy (anonymous):
ok, graphing it is http://www.wolframalpha.com/input/?i=x-y%3D0%2C+5x%2B2y%3D-7
OpenStudy (anonymous):
looks like x = -1, y = -1 is the solution
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