12=2(5)+b

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Solution for 12=2(5)+b equation: 



12=2(5)+b

We move all terms to the left:

12-(2(5)+b)=0

We add all the numbers together, and all the variables

-(b+25)+12=0

We get rid of parentheses

-b-25+12=0

We add all the numbers together, and all the variables

-1b-13=0

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

-b=13

b=13/-1

b=-13

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