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Mathematics 7 Online
OpenStudy (anonymous):

X+7=12+3x-7x solve

OpenStudy (charlotte123):

this is what I got: http://www.wolframalpha.com/input/?i=X%2B7%3D12%2B3x-7x

OpenStudy (rina.r):

x+7-12=+3x-7x x-5=-4x x=-4+5 x=1

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