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OpenStudy (anonymous):
Solve the following system of linear equations algebraically -2x+y=2 x+y=-1
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OpenStudy (tux):
x=-1-y In equation -2x+y=2 substitute x=-1-y -2*(-1-y)+y=2 2+2y+y=2+2+3y=2 3y=0 y=0 go to x=-1-y and substitute y=0. Then you get x=-1
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