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OpenStudy (anonymous):
Substitution (x + 2y = 10) (x - y = 4)
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OpenStudy (anonymous):
x+2y=10 x-y=4 x=10-2y (10-2y)-y=4 10-3y=4 -3y=-6 y=2 x=6
OpenStudy (anonymous):
Ykz is correct
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