-31=5(y-3)-7y

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Solution for -31=5(y-3)-7y equation: 



-31=5(y-3)-7y

We move all terms to the left:

-31-(5(y-3)-7y)=0



We calculate terms in parentheses: -(5(y-3)-7y), so:

5(y-3)-7y

We add all the numbers together, and all the variables

-7y+5(y-3)

We multiply parentheses

-7y+5y-15

We add all the numbers together, and all the variables

-2y-15

Back to the equation:

-(-2y-15)



We get rid of parentheses

2y+15-31=0

We add all the numbers together, and all the variables

2y-16=0

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

2y=16

y=16/2

y=8

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