2/5=3.8/x

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Solution for 2/5=3.8/x equation: 


D( x )

x = 0

x = 0

x = 0

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

2/5 = 3.8/x // - 3.8/x

2/5-(3.8/x) = 0

2/5-3.8*x^-1 = 0

-3.8*x^-1 = -2/5 // : -3.8

x^-1 = 0.10526316

-1 < 0

1/(x^1) = 0.10526316 // * x^1

1 = 0.10526316*x^1 // : 0.10526316

9.49999981 = x^1

x = 9.49999981

x = 9.49999981

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