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15/4.2=4.8/b
We move all terms to the left:
15/4.2-(4.8/b)=0
Domain of the equation: b)!=0We add all the numbers together, and all the variables
b!=0/1
b!=0
b∈R
-(+4.8/b)+15/4.2=0
We get rid of parentheses
-4.8/b+15/4.2=0
We calculate fractions
There is no solution for this equation
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