-20-2b=20+18b

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Solution for -20-2b=20+18b equation: 



-20-2b=20+18b

We move all terms to the left:

-20-2b-(20+18b)=0

We add all the numbers together, and all the variables

-2b-(18b+20)-20=0

We get rid of parentheses

-2b-18b-20-20=0

We add all the numbers together, and all the variables

-20b-40=0

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

-20b=40

b=40/-20

b=-2

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