1.2/3.1=7.2/n

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Solution for 1.2/3.1=7.2/n equation: 


D( n )

n = 0

n = 0

n = 0

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

1.2/3.1 = 7.2/n // - 7.2/n

1.2/3.1-(7.2/n) = 0

1.2/3.1-7.2*n^-1 = 0

-7.2*n^-1 = -0.38709677 // : -7.2

n^-1 = 0.05376344

-1 < 0

1/(n^1) = 0.05376344 // * n^1

1 = 0.05376344*n^1 // : 0.05376344

18.6000003 = n^1

n = 18.6000003

n = 18.6000003

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