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OpenStudy (anonymous):
Solve the following system of equations: -2x + y = 1 -4x + y = -1
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OpenStudy (anonymous):
@theonlyrope
Nnesha (nnesha):
multiply 2nd equation by -1 so you can cancel y's
Nnesha (nnesha):
or you can multiply first one by -1 doesn't matter
OpenStudy (anonymous):
4x + y = 1
Nnesha (nnesha):
|dw:1424661600521:dw| -1 times y = ??
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