12+8y=-3-7y

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Solution for 12+8y=-3-7y equation: 



12+8y=-3-7y

We move all terms to the left:

12+8y-(-3-7y)=0

We add all the numbers together, and all the variables

8y-(-7y-3)+12=0

We get rid of parentheses

8y+7y+3+12=0

We add all the numbers together, and all the variables

15y+15=0

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

15y=-15

y=-15/15

y=-1

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