13=y/2+9

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Solution for 13=y/2+9 equation: 



13=y/2+9

We move all terms to the left:

13-(y/2+9)=0

We get rid of parentheses

-y/2-9+13=0

We multiply all the terms by the denominator


-y-9*2+13*2=0

We add all the numbers together, and all the variables

-1y+8=0

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

-y=-8

y=-8/-1

y=+8

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