81/u=3

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Solution for 81/u=3 equation:



81/u=3
We move all terms to the left:
81/u-(3)=0
Domain of the equation: u!=0
u∈R
We multiply all the terms by the denominator
-3*u+81=0
We add all the numbers together, and all the variables
-3u+81=0
We move all terms containing u to the left, all other terms to the right
-3u=-81
u=-81/-3
u=+27

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