45/81=5/n

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Solution for 45/81=5/n equation: 


D( n )

n = 0

n = 0

n = 0

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

45/81 = 5/n // - 5/n

45/81-(5/n) = 0

45/81-5*n^-1 = 0

-5*n^-1 = -5/9 // : -5

n^-1 = 1/9

-1 < 0

1/(n^1) = 1/9 // * n^1

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

9 = n^1

n = 9

n = 9

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