7y-12=3y+15

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Solution for 7y-12=3y+15 equation: 



7y-12=3y+15

We move all terms to the left:

7y-12-(3y+15)=0

We get rid of parentheses

7y-3y-15-12=0

We add all the numbers together, and all the variables

4y-27=0

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

4y=27

y=27/4

y=6+3/4

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