31-3(b-6)=b+15

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Solution for 31-3(b-6)=b+15 equation: 



31-3(b-6)=b+15

We move all terms to the left:

31-3(b-6)-(b+15)=0

We multiply parentheses

-3b-(b+15)+18+31=0

We get rid of parentheses

-3b-b-15+18+31=0

We add all the numbers together, and all the variables

-4b+34=0

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

-4b=-34

b=-34/-4

b=8+1/2

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