3b-9=9b-57

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Solution for 3b-9=9b-57 equation: 



3b-9=9b-57

We move all terms to the left:

3b-9-(9b-57)=0

We get rid of parentheses

3b-9b+57-9=0

We add all the numbers together, and all the variables

-6b+48=0

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

-6b=-48

b=-48/-6

b=+8

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