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-8.42-3b=3b=8.59-0.9b
We move all terms to the left:
-8.42-3b-(3b)=0
We add all the numbers together, and all the variables
-6b-8.42=0
We move all terms containing b to the left, all other terms to the right
-6b=8.42
b=8.42/-6
b=-1+1/2.4793388429752
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