7b-2b+b=12

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Solution for 7b-2b+b=12 equation: 



7b-2b+b=12

We move all terms to the left:

7b-2b+b-(12)=0

We add all the numbers together, and all the variables

6b-12=0

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

6b=12

b=12/6

b=2

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