-2b-4=4b+8

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Solution for -2b-4=4b+8 equation: 



-2b-4=4b+8

We move all terms to the left:

-2b-4-(4b+8)=0

We get rid of parentheses

-2b-4b-8-4=0

We add all the numbers together, and all the variables

-6b-12=0

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

-6b=12

b=12/-6

b=-2

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