12(3+b)=31

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Solution for 12(3+b)=31 equation: 



12(3+b)=31

We move all terms to the left:

12(3+b)-(31)=0

We add all the numbers together, and all the variables

12(b+3)-31=0

We multiply parentheses

12b+36-31=0

We add all the numbers together, and all the variables

12b+5=0

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

12b=-5

b=-5/12

b=-5/12

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