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

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



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

We move all terms to the left:

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



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

-7y+3(y-3)

We multiply parentheses

-7y+3y-9

We add all the numbers together, and all the variables

-4y-9

Back to the equation:

-(-4y-9)



We get rid of parentheses

4y+9+31=0

We add all the numbers together, and all the variables

4y+40=0

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

4y=-40

y=-40/4

y=-10

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