$x=-2\sqrt{3}\sin(\frac{\arccos(\frac{3}{4})}{3})-2\cos(\frac{\arccos(\frac{3}{4})}{3})-3\approx -5.768734305$
$x=4\cos(\frac{\arccos(\frac{3}{4})}{3})-3\approx 0.884483702$
$x=2\sqrt{3}\sin(\frac{\arccos(\frac{3}{4})}{3})-2\cos(\frac{\arccos(\frac{3}{4})}{3})-3\approx -4.115749397$