8b+9-12b=4b-13-5b

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Solution for 8b+9-12b=4b-13-5b equation: 



8b+9-12b=4b-13-5b

We move all terms to the left:

8b+9-12b-(4b-13-5b)=0

We add all the numbers together, and all the variables

8b-12b-(-1b-13)+9=0

We add all the numbers together, and all the variables

-4b-(-1b-13)+9=0

We get rid of parentheses

-4b+1b+13+9=0

We add all the numbers together, and all the variables

-3b+22=0

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

-3b=-22

b=-22/-3

b=7+1/3

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