2(b-3)=-42

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Solution for 2(b-3)=-42 equation: 



2(b-3)=-42

We move all terms to the left:

2(b-3)-(-42)=0

We add all the numbers together, and all the variables

2(b-3)+42=0

We multiply parentheses

2b-6+42=0

We add all the numbers together, and all the variables

2b+36=0

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

2b=-36

b=-36/2

b=-18

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