(3y-12)-7=2

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Solution for (3y-12)-7=2 equation: 



(3y-12)-7=2

We move all terms to the left:

(3y-12)-7-(2)=0

We add all the numbers together, and all the variables

(3y-12)-9=0

We get rid of parentheses

3y-12-9=0

We add all the numbers together, and all the variables

3y-21=0

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

3y=21

y=21/3

y=7

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