2b-(-4)=(-18)-9b

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Solution for 2b-(-4)=(-18)-9b equation: 



2b-(-4)=(-18)-9b

We move all terms to the left:

2b-(-4)-((-18)-9b)=0

We add all the numbers together, and all the variables

2b-((-18)-9b)+4=0



We calculate terms in parentheses: -((-18)-9b), so:

(-18)-9b

determiningTheFunctionDomain
-9b+(-18)

We add all the numbers together, and all the variables

-9b-18

Back to the equation:

-(-9b-18)



We get rid of parentheses

2b+9b+18+4=0

We add all the numbers together, and all the variables

11b+22=0

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

11b=-22

b=-22/11

b=-2

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