-2(b+13)=-20

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Solution for -2(b+13)=-20 equation: 



-2(b+13)=-20

We move all terms to the left:

-2(b+13)-(-20)=0

We add all the numbers together, and all the variables

-2(b+13)+20=0

We multiply parentheses

-2b-26+20=0

We add all the numbers together, and all the variables

-2b-6=0

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

-2b=6

b=6/-2

b=-3

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