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OpenStudy (anonymous):
Please solve the following systems of equatiouns by substitution... -4x+y=6 -5x-y=21 -7x-2y=-13 x-2y=11 -5x=y=-2 -3x+6y=-12 -5x+y=-3 3x-8y=24
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OpenStudy (anonymous):
For the first equation, solve for y: y = 4x + 6 Then put that into the second equation for y. Then the equation will only have x's. Solve for x, and put that value into the first equation to solve for y.
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