-12=12+4b

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Solution for -12=12+4b equation: 



-12=12+4b

We move all terms to the left:

-12-(12+4b)=0

We add all the numbers together, and all the variables

-(4b+12)-12=0

We get rid of parentheses

-4b-12-12=0

We add all the numbers together, and all the variables

-4b-24=0

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

-4b=24

b=24/-4

b=-6

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