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42.40=1.6b
We move all terms to the left:
42.40-(1.6b)=0
We add all the numbers together, and all the variables
-(+1.6b)+42.40=0
We add all the numbers together, and all the variables
-(+1.6b)+42.4=0
We get rid of parentheses
-1.6b+42.4=0
We move all terms containing b to the left, all other terms to the right
-1.6b=-42.4
b=-42.4/-1.6
b=26+0.8/1.6
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