4/u+13=15

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Solution for 4/u+13=15 equation: 



4/u+13=15

We move all terms to the left:

4/u+13-(15)=0



Domain of the equation: u!=0

u∈R



We add all the numbers together, and all the variables

4/u-2=0

We multiply all the terms by the denominator


-2*u+4=0

We add all the numbers together, and all the variables

-2u+4=0

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

-2u=-4

u=-4/-2

u=+2

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