13-b=b-3

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Solution for 13-b=b-3 equation: 



13-b=b-3

We move all terms to the left:

13-b-(b-3)=0

We add all the numbers together, and all the variables

-1b-(b-3)+13=0

We get rid of parentheses

-1b-b+3+13=0

We add all the numbers together, and all the variables

-2b+16=0

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

-2b=-16

b=-16/-2

b=+8

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