-4=-7/u

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Solution for -4=-7/u equation: 



-4=-7/u

We move all terms to the left:

-4-(-7/u)=0



Domain of the equation: u)!=0

u!=0/1

u!=0

u∈R



We get rid of parentheses

7/u-4=0

We multiply all the terms by the denominator


-4*u+7=0

We add all the numbers together, and all the variables

-4u+7=0

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

-4u=-7

u=-7/-4

u=1+3/4

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