81-6b=9b-18

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Solution for 81-6b=9b-18 equation: 



81-6b=9b-18

We move all terms to the left:

81-6b-(9b-18)=0

We get rid of parentheses

-6b-9b+18+81=0

We add all the numbers together, and all the variables

-15b+99=0

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

-15b=-99

b=-99/-15

b=6+3/5

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