21/113=5/n

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Solution for 21/113=5/n equation: 


D( n )

n = 0

n = 0

n = 0

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

21/113 = 5/n // - 5/n

21/113-(5/n) = 0

21/113-5*n^-1 = 0

-5*n^-1 = -21/113 // : -5

n^-1 = 21/565

-1 < 0

1/(n^1) = 21/565 // * n^1

1 = 21/565*n^1 // : 21/565

565/21 = n^1

n = 565/21

n = 565/21

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