x+2x/2x=99

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Solution for x+2x/2x=99 equation: 


x in (-oo:+oo)

((2*x)/2)*x+x = 99 // - 99

((2*x)/2)*x+x-99 = 0

x^2+x-99 = 0

DELTA = 1^2-(-99*1*4)

DELTA = 397

DELTA > 0

x = (397^(1/2)-1)/(1*2) or x = (-397^(1/2)-1)/(1*2)

x = (397^(1/2)-1)/2 or x = (-(397^(1/2)+1))/2

x in { (-(397^(1/2)+1))/2, (397^(1/2)-1)/2 }

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