13-b=-8+9b

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Solution for 13-b=-8+9b equation: 



13-b=-8+9b

We move all terms to the left:

13-b-(-8+9b)=0

We add all the numbers together, and all the variables

-b-(9b-8)+13=0

We add all the numbers together, and all the variables

-1b-(9b-8)+13=0

We get rid of parentheses

-1b-9b+8+13=0

We add all the numbers together, and all the variables

-10b+21=0

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

-10b=-21

b=-21/-10

b=2+1/10

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