Question 48
Find all triples $(x, y, z)$ of positive integers, such that
$$3 \cdot x! + 4 \cdot y! = 5 \cdot z!.$$
$$3 \cdot x! + 4 \cdot y! = 5 \cdot z!.$$
MathNet 2025-part-01 — 187 problems (EN–VI) Question 48
Math Olympiad Vault · MathNet 2025-part-01 — 187 problems (EN–VI)