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Algebra
Level
4
If \(\displaystyle x,y,z\in\mathbb R\) are positive, solve \[\displaystyle\begin{cases}x+\frac{1}{yz}+z^2=3\\y+\frac{1}{xz}=2\end{cases}\]
The solutions are \(\displaystyle (x_1,y_1,z_1), (x_2,y_2,z_2),\ldots, (x_n,y_n,z_n)\).
Find \(\displaystyle\sum_{i=1}^n (x_i+y_i+z_i)\).
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