9x/3x-15+15/5-x

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Solution for 9x/3x-15+15/5-x equation: 


x in (-oo:+oo)

((9*x)/3)*x-x+15/5-15 = 0

3*x^2-x-12 = 0

DELTA = (-1)^2-(-12*3*4)

DELTA = 145

DELTA > 0

x = (145^(1/2)+1)/(2*3) or x = (1-145^(1/2))/(2*3)

x = (145^(1/2)+1)/6 or x = (1-145^(1/2))/6

x in { (1-145^(1/2))/6, (145^(1/2)+1)/6 }

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