20/4/5=100/n

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Solution for 20/4/5=100/n equation: 


D( n )

n = 0

n = 0

n = 0

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

(20/4)/5 = 100/n // - 100/n

(20/4)/5-(100/n) = 0

(20/4)/5-100*n^-1 = 0

-100*n^-1 = -1 // : -100

n^-1 = 1/100

-1 < 0

1/(n^1) = 1/100 // * n^1

1 = 1/100*n^1 // : 1/100

100 = n^1

n = 100

n = 100

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