18a-6a/3a

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Solution for 18a-6a/3a equation: 


a in (-oo:+oo)

18*a-(((6*a)/3)*a) = 0

18*a-2*a^2 = 0

18*a-2*a^2 = 0

DELTA = 18^2-(-2*0*4)

DELTA = 324

DELTA > 0

a = (324^(1/2)-18)/(-2*2) or a = (-324^(1/2)-18)/(-2*2)

a = 0 or a = 9

a in { 0, 9 }

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