-1/u=-9

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Solution for -1/u=-9 equation: 



-1/u=-9

We move all terms to the left:

-1/u-(-9)=0



Domain of the equation: u!=0

u∈R



We add all the numbers together, and all the variables

-1/u+9=0

We multiply all the terms by the denominator


9*u-1=0

We add all the numbers together, and all the variables

9u-1=0

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

9u=1

u=1/9

u=1/9

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