0.4b+1.2b=3.2

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Solution for 0.4b+1.2b=3.2 equation: 



0.4b+1.2b=3.2

We move all terms to the left:

0.4b+1.2b-(3.2)=0

We add all the numbers together, and all the variables

1.6b-3.2=0

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

1.6b=3.2

b=3.2/1.6

b=2

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