4/5=20/(x-5)

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Solution for 4/5=20/(x-5) equation: 



4/5=20/(x-5)

We move all terms to the left:

4/5-(20/(x-5))=0



Domain of the equation: (x-5))!=0

x∈R



We calculate fractions


()/5x+4x/5x=0

We multiply all the terms by the denominator


4x+()=0

We add all the numbers together, and all the variables

4x=0

x=0/4

x=0

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