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OpenStudy (anonymous):
Solve the following system of equations: -2x+y=1 -4x+y=-1 A. (3,1) B. (-1,3) C. (-1,-3) D. (1,3)
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OpenStudy (kagıtucak):
Substract second equation from the first one. We get -2x+4y+4x-y=2 2x=2 x=1 Put it into the first equation -2*1+y=1 y=3 so the answer is (1,3) D.
OpenStudy (anonymous):
you're awesome, THANKS!
OpenStudy (kagıtucak):
you're welcome
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