4/u=9

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Solution for 4/u=9 equation: 



4/u=9

We move all terms to the left:

4/u-(9)=0



Domain of the equation: u!=0

u∈R



We multiply all the terms by the denominator


-9*u+4=0

We add all the numbers together, and all the variables

-9u+4=0

We move all terms containing u to the left, all other terms to the right

-9u=-4

u=-4/-9

u=4/9

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