7b-9=6+3b

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Solution for 7b-9=6+3b equation: 



7b-9=6+3b

We move all terms to the left:

7b-9-(6+3b)=0

We add all the numbers together, and all the variables

7b-(3b+6)-9=0

We get rid of parentheses

7b-3b-6-9=0

We add all the numbers together, and all the variables

4b-15=0

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

4b=15

b=15/4

b=3+3/4

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