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OpenStudy (anonymous):
Solve following the System of Equation: -4x + y = -1 2x + y = 5
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OpenStudy (shamil98):
-4x + y = -1 4x + 2y = 10 (you multiply the second equation by 2) from there add the equations and solve for y
OpenStudy (unklerhaukus):
after you get y, (following shamil98s method) substitute y into one of the original equation to solve for x
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