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AIMO 2021 Secondary 2 — Preliminary (Open Trial 1) Question 3

AIMO · AIMO 2021 Secondary 2 — Preliminary (Open Trial 1)

Question 3

Given $3x+y+4z=16$ and $x+y+4z=18$, find $y+4z-x$.
  1. 20
  2. 21
  3. 22
  4. 23