12y-5=9y+7

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Solution for 12y-5=9y+7 equation: 



12y-5=9y+7

We move all terms to the left:

12y-5-(9y+7)=0

We get rid of parentheses

12y-9y-7-5=0

We add all the numbers together, and all the variables

3y-12=0

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

3y=12

y=12/3

y=4

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