Variable Vault – Level 1 – Easy

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Home » 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:

A + B = 9
B = A + 1
C = 2A
D = B – 1
A + C + D = 17

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Additional instructions for Variable Vault (Level 1, Easy)

Variable Vault – Easy

What this puzzle is: solve each small algebra clue to uncover a number. Each correct number “unlocks” part of the vault. Solve them all to open it fully.

How to approach:

Read one clue at a time — don’t try to solve everything at once.
If it says solve, isolate the variable step-by-step.
If it says simplify, expand brackets and collect like terms first.
Write each answer clearly before moving on.

Tip: treat each clue as a mini standalone puzzle — accuracy matters more than speed.

Full help: Variable Vault

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