-9=-3+2b

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



-9=-3+2b

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(2b-3)-9=0

We get rid of parentheses

-2b+3-9=0

We add all the numbers together, and all the variables

-2b-6=0

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

-2b=6

b=6/-2

b=-3

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