20/n=4

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Solution for 20/n=4 equation: 


D( n )

n = 0

n = 0

n = 0

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

20/n = 4 // - 4

20/n-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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