2.5/2.2=4/x

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Solution for 2.5/2.2=4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

2.5/2.2 = 4/x // - 4/x

2.5/2.2-(4/x) = 0

2.5/2.2-4*x^-1 = 0

-4*x^-1 = -1.13636364 // : -4

x^-1 = 0.28409091

-1 < 0

1/(x^1) = 0.28409091 // * x^1

1 = 0.28409091*x^1 // : 0.28409091

3.51999999 = x^1

x = 3.51999999

x = 3.51999999

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