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4.2b=7.3/4.2
We move all terms to the left:
4.2b-(7.3/4.2)=0
We add all the numbers together, and all the variables
4.2b-(+7.3/4.2)=0
We get rid of parentheses
4.2b-7.3/4.2=0
We multiply all the terms by the denominator
(4.2b)*4.2-7.3=0
We add all the numbers together, and all the variables
(+4.2b)*4.2-7.3=0
We multiply parentheses
16.8b-7.3=0
We move all terms containing b to the left, all other terms to the right
16.8b=7.3
b=7.3/16.8
b=5.61538461538/12.9230769231
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