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OpenStudy (anonymous):
solve the linear system using elimination x+y=2 2x +7y=9
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OpenStudy (anonymous):
x + y = 2 times 2 -> 2x + 2y = 4 2x + 2y = 4 - 2x + 7y = 9 --------------------- -5y = -5 and so on
OpenStudy (anonymous):
oh
OpenStudy (anonymous):
but its wrong
OpenStudy (anonymous):
its (1,1)
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