12=y/3+9

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Solution for 12=y/3+9 equation: 



12=y/3+9

We move all terms to the left:

12-(y/3+9)=0

We get rid of parentheses

-y/3-9+12=0

We multiply all the terms by the denominator


-y-9*3+12*3=0

We add all the numbers together, and all the variables

-1y+9=0

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

-y=-9

y=-9/-1

y=+9

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