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Sample Puzzle

 

Find the 6-digit number ABCDEF by solving the following equations:

eq.1) A + B + C + D + E + F = 29
eq.2) E – D = C
eq.3) F – A = C
eq.4) D + F = A + B + C
eq.5) B – C + D = F – E
eq.6) F = B × D

A, B, C, D, E, and F each represent a one-digit non-negative integer.

Welcome to SimEqPuzzles.com — the simultaneous equation puzzle website. Every day there will be a new puzzle for you to solve (similar to the sample puzzle shown). Each puzzle is made up of a set or group of equations, with each equation having one or more “unknowns” (or “variables” in the language of mathematics). When the equations are solved together in their entirety, they yield a unique numeric solution for each of the unknowns.

If you’re ready to start solving a puzzle (including today’s puzzle), click on “Puzzles” from the menu above. If you want to review some helpful techniques for solving simultaneous equations, click on “How To Solve” from the menu above.