5u/u=20

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Solution for 5u/u=20 equation: 



5u/u=20

We move all terms to the left:

5u/u-(20)=0



Domain of the equation: u!=0

u∈R



We multiply all the terms by the denominator


5u-20*u=0

We add all the numbers together, and all the variables

-15u=0

u=0/-15

u=0

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