-4y-15=2y+21

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Solution for -4y-15=2y+21 equation: 



-4y-15=2y+21

We move all terms to the left:

-4y-15-(2y+21)=0

We get rid of parentheses

-4y-2y-21-15=0

We add all the numbers together, and all the variables

-6y-36=0

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

-6y=36

y=36/-6

y=-6

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