b-9=18-3b

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Solution for b-9=18-3b equation: 



b-9=18-3b

We move all terms to the left:

b-9-(18-3b)=0

We add all the numbers together, and all the variables

b-(-3b+18)-9=0

We get rid of parentheses

b+3b-18-9=0

We add all the numbers together, and all the variables

4b-27=0

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

4b=27

b=27/4

b=6+3/4

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