4b-13=15

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Solution for 4b-13=15 equation: 



4b-13=15

We move all terms to the left:

4b-13-(15)=0

We add all the numbers together, and all the variables

4b-28=0

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

4b=28

b=28/4

b=7

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