12=4(2+b)

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Solution for 12=4(2+b) equation: 



12=4(2+b)

We move all terms to the left:

12-(4(2+b))=0

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(4(b+2)), so:

4(b+2)

We multiply parentheses

4b+8

Back to the equation:

-(4b+8)



We get rid of parentheses

-4b-8+12=0

We add all the numbers together, and all the variables

-4b+4=0

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

-4b=-4

b=-4/-4

b=1

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