2(b+9)=4b-2

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



2(b+9)=4b-2

We move all terms to the left:

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

We multiply parentheses

2b-(4b-2)+18=0

We get rid of parentheses

2b-4b+2+18=0

We add all the numbers together, and all the variables

-2b+20=0

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

-2b=-20

b=-20/-2

b=+10

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