Solve for y, x, z
x=\frac{11-3\sqrt{5}}{4}\approx 1.072949017\text{, }y=\frac{-\sqrt{5}-7}{4}\approx -2.309016994\text{, }z=-2
x=\frac{3\sqrt{5}+11}{4}\approx 4.427050983\text{, }y=\frac{\sqrt{5}-7}{4}\approx -1.190983006\text{, }z=-2
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