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OpenStudy (anonymous):
2x + y = 3 x - 2y = -1 If equation one is multiplied by 2 and then the equations are added, the result is _____. 3x= 2 3x= 5 5x= 5
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OpenStudy (anonymous):
plug x = -1 + 2y into 2x + y = 3 then you'll get 2(-1 + 2y) + y = 3 >>> -2 +4y +y = 3 solve for y, and substitute into x = -1 + 2y and solve for x
OpenStudy (anonymous):
5X=5
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