3b-9=5b+7

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Solution for 3b-9=5b+7 equation: 



3b-9=5b+7

We move all terms to the left:

3b-9-(5b+7)=0

We get rid of parentheses

3b-5b-7-9=0

We add all the numbers together, and all the variables

-2b-16=0

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

-2b=16

b=16/-2

b=-8

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