3.2=0.8b-4

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Solution for 3.2=0.8b-4 equation: 



3.2=0.8b-4

We move all terms to the left:

3.2-(0.8b-4)=0

We get rid of parentheses

-0.8b+4+3.2=0

We add all the numbers together, and all the variables

-0.8b+7.2=0

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

-0.8b=-7.2

b=-7.2/-0.8

b=+9

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