21/n=2/3

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Solution for 21/n=2/3 equation: 


D( n )

n = 0

n = 0

n = 0

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

21/n = 2/3 // - 2/3

21/n-(2/3) = 0

21/n-2/3 = 0

21*n^-1 = 2/3 // : 21

n^-1 = 2/63

-1 < 0

1/(n^1) = 2/63 // * n^1

1 = 2/63*n^1 // : 2/63

63/2 = n^1

n = 63/2

n = 63/2

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