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Mathematics 7 Online
OpenStudy (haileyd):

I need help with 7, 9 and 11

OpenStudy (haileyd):

OpenStudy (anonymous):

7. 3x=4x-5 4x-3x=5 x=5

OpenStudy (haileyd):

what about 9 i already got 11 @surjithayer

OpenStudy (anonymous):

4x-21=3x 4x-3x=21 x=21 3y=y+78 3y-y=78 2y=78 y=78/2=39

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