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OpenStudy (anonymous):
solving equations with two variables algebraically 1: 2x-y=5 3x-2y=9
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OpenStudy (anonymous):
x=1, y=-3
OpenStudy (anonymous):
(1) 2x-y=5 (2) 3x-2y=9 | (2)-2*(1) (1) 2x-y=5 (2) -x = -1 <=> x=1 x in (1): 2*1-y=5 solve for y: y=-3
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