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Variable Vault Level 1 Medium maths puzzle involving algebra, clues, codeword and dials

Variable Vault – Level 1 – Medium

Home » Puzzles » Variable Vault » Level 1 - Medium » Variable Vault – Level 1 – Medium
Topics: algebra, clues, codeword, dials, linear equations, system of equations

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.

Crack the vault code using these clues:

– D + C + A + B = 20
A + B = 11
A + B = C + D + 2
C = B + 2
A + C + D = 16

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Additional instructions for Variable Vault (Level 1, Medium)

Variable Vault – Medium

Algebra discipline: one clean step per line.

  • Expand fully before collecting like terms.
  • Move terms carefully across the equals sign.
  • Divide at the very end when the variable stands alone.

Tip: quick substitution checks save you from vault “lock failures”.

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