9=7+2y

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Solution for 9=7+2y equation: 



9=7+2y

We move all terms to the left:

9-(7+2y)=0

We add all the numbers together, and all the variables

-(2y+7)+9=0

We get rid of parentheses

-2y-7+9=0

We add all the numbers together, and all the variables

-2y+2=0

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

-2y=-2

y=-2/-2

y=1

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