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OpenStudy (anonymous):
solve using elimination 12x+2y=90 6x+2y=60
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OpenStudy (anonymous):
Multiply the second one by -1 Combine with the first...
OpenStudy (anonymous):
12x + 2y=90 -6x -2y = -60 6x = 30 x = 5 Then use x = 5 in the first equation to solve for Y
OpenStudy (anonymous):
60+2y=90
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