7b+12=9b

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Solution for 7b+12=9b equation: 



7b+12=9b

We move all terms to the left:

7b+12-(9b)=0

We add all the numbers together, and all the variables

-2b+12=0

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

-2b=-12

b=-12/-2

b=+6

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