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MathNet 2022-part-02 — 197 problems (EN–VI) Question 72

Math Olympiad Vault · MathNet 2022-part-02 — 197 problems (EN–VI)

Question 72

Let $x, y, z$ be strictly positive real numbers such that
$$
x+\frac{y}{z}=y+\frac{z}{x}=z+\frac{x}{y}=2
$$
Determine all possible values that the number $x+y+z$ can take.