3/u+9=20

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Solution for 3/u+9=20 equation: 



3/u+9=20

We move all terms to the left:

3/u+9-(20)=0



Domain of the equation: u!=0

u∈R



We add all the numbers together, and all the variables

3/u-11=0

We multiply all the terms by the denominator


-11*u+3=0

We add all the numbers together, and all the variables

-11u+3=0

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

-11u=-3

u=-3/-11

u=3/11

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