7x-14x/7x

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Solution for 7x-14x/7x equation: 


x in (-oo:+oo)

7*x-(((14*x)/7)*x) = 0

7*x-2*x^2 = 0

7*x-2*x^2 = 0

DELTA = 7^2-(-2*0*4)

DELTA = 49

DELTA > 0

x = (49^(1/2)-7)/(-2*2) or x = (-49^(1/2)-7)/(-2*2)

x = 0 or x = 7/2

x in { 0, 7/2 }

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