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x in (-oo:+oo)
-2/3 = 4*x+(4/2)*x+14 // - 4*x+(4/2)*x+14
-(4*x)-((4/2)*x)-2/3-14 = 0
-4*x-2*x-2/3-14 = 0
-6*x-44/3 = 0 // + 44/3
-6*x = 44/3 // : -6
x = 44/3/(-6)
x = -22/9
x = -22/9
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