3/x=4/20

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Solution for 3/x=4/20 equation: 


D( x )

x = 0

x = 0

x = 0

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

3/x = 4/20 // - 4/20

3/x-(4/20) = 0

3/x-1/5 = 0

3*x^-1 = 1/5 // : 3

x^-1 = 1/15

-1 < 0

1/(x^1) = 1/15 // * x^1

1 = 1/15*x^1 // : 1/15

15 = x^1

x = 15

x = 15

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