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5/7=20/l
We move all terms to the left:
5/7-(20/l)=0
Domain of the equation: l)!=0We add all the numbers together, and all the variables
l!=0/1
l!=0
l∈R
-(+20/l)+5/7=0
We get rid of parentheses
-20/l+5/7=0
We calculate fractions
There is no solution for this equation
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