30/25=18/n

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Solution for 30/25=18/n equation: 


D( n )

n = 0

n = 0

n = 0

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

30/25 = 18/n // - 18/n

30/25-(18/n) = 0

30/25-18*n^-1 = 0

-18*n^-1 = -6/5 // : -18

n^-1 = 1/15

-1 < 0

1/(n^1) = 1/15 // * n^1

1 = 1/15*n^1 // : 1/15

15 = n^1

n = 15

n = 15

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