2b-15=7b

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Solution for 2b-15=7b equation: 



2b-15=7b

We move all terms to the left:

2b-15-(7b)=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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