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OpenStudy (anonymous):
what is the solution system x+2y=-8 and x-y=13
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OpenStudy (uri):
Multiply the second eq with 2
OpenStudy (uri):
x+2y=-8 x-y=13 (2) x+2y=-8 x-2y=26 ===== 2x=18 x=18/2 x=9 Now put the value of x in the original eq 1 x+2y=-8 9+2y=-8 Solve for y.
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