80/5=64/n

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Solution for 80/5=64/n equation: 


D( n )

n = 0

n = 0

n = 0

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

80/5 = 64/n // - 64/n

80/5-(64/n) = 0

80/5-64*n^-1 = 0

-64*n^-1 = -16 // : -64

n^-1 = 1/4

-1 < 0

1/(n^1) = 1/4 // * n^1

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

4 = n^1

n = 4

n = 4

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