-12=4(b+-4)

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



-12=4(b+-4)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

4(b-4)

We multiply parentheses

4b-16

Back to the equation:

-(4b-16)



We get rid of parentheses

-4b+16-12=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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