4/5=8/n

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Solution for 4/5=8/n equation: 


D( n )

n = 0

n = 0

n = 0

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

4/5 = 8/n // - 8/n

4/5-(8/n) = 0

4/5-8*n^-1 = 0

-8*n^-1 = -4/5 // : -8

n^-1 = 1/10

-1 < 0

1/(n^1) = 1/10 // * n^1

1 = 1/10*n^1 // : 1/10

10 = n^1

n = 10

n = 10

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