-13+8b=7+4b

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Solution for -13+8b=7+4b equation: 



-13+8b=7+4b

We move all terms to the left:

-13+8b-(7+4b)=0

We add all the numbers together, and all the variables

8b-(4b+7)-13=0

We get rid of parentheses

8b-4b-7-13=0

We add all the numbers together, and all the variables

4b-20=0

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

4b=20

b=20/4

b=5

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