2(b-9)=-4

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Solution for 2(b-9)=-4 equation: 



2(b-9)=-4

We move all terms to the left:

2(b-9)-(-4)=0

We add all the numbers together, and all the variables

2(b-9)+4=0

We multiply parentheses

2b-18+4=0

We add all the numbers together, and all the variables

2b-14=0

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

2b=14

b=14/2

b=7

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