Variable Vault Puzzle

Variable Vault – Level 1 – Easy

Four lettered dials (A, B, C, D) unlock a vault. Each dial must be set to the correct number based on the clues below. Solve all clues to find the code: the 4-digit number ABCD.

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Clues:

  1. A + B = 9
  2. B = A + 1
  3. C = 2A
  4. D = B – 1
  5. A + C + D = 17

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