Solve for u, y (complex solution)
y=\frac{14}{9}\approx 1.555555556\text{, }u=\frac{\sqrt{3}i}{3}\approx 0.577350269i
y=\frac{14}{9}\approx 1.555555556\text{, }u=-\frac{\sqrt{3}i}{3}\approx -0-0.577350269i
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