0.8b-4=3.2

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Solution for 0.8b-4=3.2 equation: 



0.8b-4=3.2

We move all terms to the left:

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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