72=y+7y

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Solution for 72=y+7y equation: 



72=y+7y

We move all terms to the left:

72-(y+7y)=0

We add all the numbers together, and all the variables

-(+8y)+72=0

We get rid of parentheses

-8y+72=0

We move all terms containing y to the left, all other terms to the right

-8y=-72

y=-72/-8

y=+9

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