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Mathematics 17 Online
OpenStudy (anonymous):

7 - y - y = -1

OpenStudy (anonymous):

7-y-y=-1 = 7-2y=-1 -7 -7 -2y=-8 -2y/-2=-8/-2 y=4

OpenStudy (anonymous):

7-y-y=-1 7-2y=-1 -2y=-1-7 -2y=-8 y=-8/-2 y=4

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