31=3(y-3)-8y

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Solution for 31=3(y-3)-8y equation: 



31=3(y-3)-8y

We move all terms to the left:

31-(3(y-3)-8y)=0



We calculate terms in parentheses: -(3(y-3)-8y), so:

3(y-3)-8y

We add all the numbers together, and all the variables

-8y+3(y-3)

We multiply parentheses

-8y+3y-9

We add all the numbers together, and all the variables

-5y-9

Back to the equation:

-(-5y-9)



We get rid of parentheses

5y+9+31=0

We add all the numbers together, and all the variables

5y+40=0

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

5y=-40

y=-40/5

y=-8

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