-2b+9-6b=-31

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Solution for -2b+9-6b=-31 equation: 



-2b+9-6b=-31

We move all terms to the left:

-2b+9-6b-(-31)=0

We add all the numbers together, and all the variables

-8b+40=0

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

-8b=-40

b=-40/-8

b=+5

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