16/28=4/n

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Solution for 16/28=4/n equation: 


D( n )

n = 0

n = 0

n = 0

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

16/28 = 4/n // - 4/n

16/28-(4/n) = 0

16/28-4*n^-1 = 0

-4*n^-1 = -4/7 // : -4

n^-1 = 1/7

-1 < 0

1/(n^1) = 1/7 // * n^1

1 = 1/7*n^1 // : 1/7

7 = n^1

n = 7

n = 7

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