4/5=28/n

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Solution for 4/5=28/n equation: 


D( n )

n = 0

n = 0

n = 0

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

4/5 = 28/n // - 28/n

4/5-(28/n) = 0

4/5-28*n^-1 = 0

-28*n^-1 = -4/5 // : -28

n^-1 = 1/35

-1 < 0

1/(n^1) = 1/35 // * n^1

1 = 1/35*n^1 // : 1/35

35 = n^1

n = 35

n = 35

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