3+15=12b-3b=

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Solution for 3+15=12b-3b= equation: 



3+15=12b-3b=

We move all terms to the left:

3+15-(12b-3b)=0

We add all the numbers together, and all the variables

-(+9b)+3+15=0

We add all the numbers together, and all the variables

-(+9b)+18=0

We get rid of parentheses

-9b+18=0

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

-9b=-18

b=-18/-9

b=+2

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