4/x=8/20-x

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Solution for 4/x=8/20-x equation: 


D( x )

x = 0

x = 0

x = 0

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

4/x = 8/20-x // - 8/20-x

x+4/x-(8/20) = 0

x+4/x-2/5 = 0

1*x^1+4*x^-1-2/5*x^0 = 0

(1*x^2-2/5*x^1+4*x^0)/(x^1) = 0 // * x^2

x^1*(1*x^2-2/5*x^1+4*x^0) = 0

x^1

x^2+(-2/5)*x+4 = 0

x^2+(-2/5)*x+4 = 0

DELTA = (-2/5)^2-(1*4*4)

DELTA = -396/25

DELTA < 0

x in { } 

x belongs to the empty set

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