-11.49-12.87-20b=-16.9b-19.71

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Solution for -11.49-12.87-20b=-16.9b-19.71 equation: 



-11.49-12.87-20b=-16.9b-19.71

We move all terms to the left:

-11.49-12.87-20b-(-16.9b-19.71)=0

We add all the numbers together, and all the variables

-20b-(-16.9b-19.71)-24.36=0

We get rid of parentheses

-20b+16.9b+19.71-24.36=0

We add all the numbers together, and all the variables

-3.1b-4.65=0

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

-3.1b=4.65

b=4.65/-3.1

b=-1+1/2

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