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54.32=2.8b
We move all terms to the left:
54.32-(2.8b)=0
We add all the numbers together, and all the variables
-(+2.8b)+54.32=0
We get rid of parentheses
-2.8b+54.32=0
We move all terms containing b to the left, all other terms to the right
-2.8b=-54.32
b=-54.32/-2.8
b=19+1/2.5
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