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 multiply parentheses

2b-18-4=0

We add all the numbers together, and all the variables

2b-22=0

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

2b=22

b=22/2

b=11

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