4x^2/7-4x=-7

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Solution for 4x^2/7-4x=-7 equation: 


x in (-oo:+oo)

(4*x^2)/7-(4*x) = -7 // + 7

(4*x^2)/7-(4*x)+7 = 0

(4*x^2)/7-4*x+7 = 0

4/7*x^2-4*x+7 = 0

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

DELTA = 0

x = 4/(4/7*2)

x = 7/2 or x = 7/2

x in { 7/2, 7/2 }

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