b-2(b+7)=12

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Solution for b-2(b+7)=12 equation: 



b-2(b+7)=12

We move all terms to the left:

b-2(b+7)-(12)=0

We multiply parentheses

b-2b-14-12=0

We add all the numbers together, and all the variables

-1b-26=0

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

-b=26

b=26/-1

b=-26

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