3/n=5/7

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Solution for 3/n=5/7 equation: 


D( n )

n = 0

n = 0

n = 0

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

3/n = 5/7 // - 5/7

3/n-(5/7) = 0

3/n-5/7 = 0

3*n^-1 = 5/7 // : 3

n^-1 = 5/21

-1 < 0

1/(n^1) = 5/21 // * n^1

1 = 5/21*n^1 // : 5/21

21/5 = n^1

n = 21/5

n = 21/5

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