-15.5=2.5b-2b

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Solution for -15.5=2.5b-2b equation: 



-15.5=2.5b-2b

We move all terms to the left:

-15.5-(2.5b-2b)=0

We add all the numbers together, and all the variables

-(+0.5b)-15.5=0

We get rid of parentheses

-0.5b-15.5=0

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

-0.5b=15.5

b=15.5/-0.5

b=-31

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