8=2-81/u

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Solution for 8=2-81/u equation: 



8=2-81/u

We move all terms to the left:

8-(2-81/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

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

We get rid of parentheses

81/u-2+8=0

We multiply all the terms by the denominator


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

We add all the numbers together, and all the variables

6u+81=0

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

6u=-81

u=-81/6

u=-13+1/2

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