4/5/x=2/0.4

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Solution for 4/5/x=2/0.4 equation: 


D( x )

x = 0

x = 0

x = 0

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

(4/5)/x = 2/0.4 // - 2/0.4

(4/5)/x-(2/0.4) = 0

(4/5)/x-5 = 0

4/5*x^-1 = 5 // : 4/5

x^-1 = 25/4

-1 < 0

1/(x^1) = 25/4 // * x^1

1 = 25/4*x^1 // : 25/4

4/25 = x^1

x = 4/25

x = 4/25

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