12y-7=20+3y

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Solution for 12y-7=20+3y equation: 



12y-7=20+3y

We move all terms to the left:

12y-7-(20+3y)=0

We add all the numbers together, and all the variables

12y-(3y+20)-7=0

We get rid of parentheses

12y-3y-20-7=0

We add all the numbers together, and all the variables

9y-27=0

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

9y=27

y=27/9

y=3

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