31=2(y+3)-7y

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Solution for 31=2(y+3)-7y equation: 



31=2(y+3)-7y

We move all terms to the left:

31-(2(y+3)-7y)=0



We calculate terms in parentheses: -(2(y+3)-7y), so:

2(y+3)-7y

We add all the numbers together, and all the variables

-7y+2(y+3)

We multiply parentheses

-7y+2y+6

We add all the numbers together, and all the variables

-5y+6

Back to the equation:

-(-5y+6)



We get rid of parentheses

5y-6+31=0

We add all the numbers together, and all the variables

5y+25=0

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

5y=-25

y=-25/5

y=-5

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