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3.4b-3.2=16.8
We move all terms to the left:
3.4b-3.2-(16.8)=0
We add all the numbers together, and all the variables
3.4b-20=0
We move all terms containing b to the left, all other terms to the right
3.4b=20
b=20/3.4
b=5+1/1.1333333333333
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