3b+15=8b

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Solution for 3b+15=8b equation: 



3b+15=8b

We move all terms to the left:

3b+15-(8b)=0

We add all the numbers together, and all the variables

-5b+15=0

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

-5b=-15

b=-15/-5

b=+3

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