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-2-3.7b=4
We move all terms to the left:
-2-3.7b-(4)=0
We add all the numbers together, and all the variables
-3.7b-6=0
We move all terms containing b to the left, all other terms to the right
-3.7b=6
b=6/-3.7
b=-1+2.3/3.7
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