b/13-3*b/13=8/13

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Solution for b/13-3*b/13=8/13 equation: 



b/13-3b/13=8/13

We move all terms to the left:

b/13-3b/13-(8/13)=0

We add all the numbers together, and all the variables

b/13-3b/13-(+8/13)=0

We get rid of parentheses

b/13-3b/13-8/13=0

We multiply all the terms by the denominator


b-3b-8=0

We add all the numbers together, and all the variables

-2b-8=0

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

-2b=8

b=8/-2

b=-4

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