9/n=5/20

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Solution for 9/n=5/20 equation: 


D( n )

n = 0

n = 0

n = 0

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

9/n = 5/20 // - 5/20

9/n-(5/20) = 0

9/n-1/4 = 0

9*n^-1 = 1/4 // : 9

n^-1 = 1/36

-1 < 0

1/(n^1) = 1/36 // * n^1

1 = 1/36*n^1 // : 1/36

36 = n^1

n = 36

n = 36

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