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1/80r=1/60r
We move all terms to the left:
1/80r-(1/60r)=0
Domain of the equation: 80r!=0
r!=0/80
r!=0
r∈R
Domain of the equation: 60r)!=0We add all the numbers together, and all the variables
r!=0/1
r!=0
r∈R
1/80r-(+1/60r)=0
We get rid of parentheses
1/80r-1/60r=0
We calculate fractions
60r/4800r^2+(-80r)/4800r^2=0
We multiply all the terms by the denominator
60r+(-80r)=0
We get rid of parentheses
60r-80r=0
We add all the numbers together, and all the variables
-20r=0
r=0/-20
r=0
Równanie nie ma rozwiązania
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