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Mathematics 9 Online
OpenStudy (anonymous):

5x=-2+7y x-7y=-34

OpenStudy (xxdragoonxx):

5x=-2+7y 5x=7y−2 x=7y-2/5 7*y-2/5-7*y=-34 7y-2/5-7y=-34 5*(7y-2/5-7y)=5*-34 7y-2-7y*5=5*-34 7y−2+5*-7y=5*-34 7y−2−35y=-170 7y−35y−2=-170 -28y−2=-170 -28y=-170+2 -28y=-168 y=-168/-28 y=6 x=7*6-2/5 x=42-2/5 x=40/5 x=8

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