4.2/u=8.1

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Solution for 4.2/u=8.1 equation: 



4.2/u=8.1

We move all terms to the left:

4.2/u-(8.1)=0



Domain of the equation: u!=0

u∈R



We add all the numbers together, and all the variables

4.2/u-8.1=0

We multiply all the terms by the denominator


-(8.1)*u+4.2=0

We multiply parentheses

-8.1u+4.2=0

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

-8.1u=-4.2

u=-4.2/-8.1

u=1/1.9285714285714

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