8=81-2/u

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Solution for 8=81-2/u equation: 



8=81-2/u

We move all terms to the left:

8-(81-2/u)=0



Domain of the equation: u)!=0

u!=0/1

u!=0

u∈R



We add all the numbers together, and all the variables

-(-2/u+81)+8=0

We get rid of parentheses

2/u-81+8=0

We multiply all the terms by the denominator


-81*u+8*u+2=0

We add all the numbers together, and all the variables

-73u+2=0

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

-73u=-2

u=-2/-73

u=2/73

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