12y-7=15y-40

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Solution for 12y-7=15y-40 equation: 



12y-7=15y-40

We move all terms to the left:

12y-7-(15y-40)=0

We get rid of parentheses

12y-15y+40-7=0

We add all the numbers together, and all the variables

-3y+33=0

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

-3y=-33

y=-33/-3

y=+11

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