2b-9-3b=7+3b

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Solution for 2b-9-3b=7+3b equation: 



2b-9-3b=7+3b

We move all terms to the left:

2b-9-3b-(7+3b)=0

We add all the numbers together, and all the variables

2b-3b-(3b+7)-9=0

We add all the numbers together, and all the variables

-1b-(3b+7)-9=0

We get rid of parentheses

-1b-3b-7-9=0

We add all the numbers together, and all the variables

-4b-16=0

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

-4b=16

b=16/-4

b=-4

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