5/n-4=25/n

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Solution for 5/n-4=25/n equation: 


D( n )

n = 0

n = 0

n = 0

n in (-oo:0) U (0:+oo)

5/n-4 = 25/n // - 25/n

5/n-(25/n)-4 = 0

5/n-25*n^-1-4 = 0

-20*n^-1 = 4 // : -20

n^-1 = -1/5

-1 < 0

1/(n^1) = -1/5 // * n^1

1 = -1/5*n^1 // : -1/5

-5 = n^1

n = -5

n = -5

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