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Advanced Algebra

Simultaneous Equations

Two equations. One intersection. Find x and y.

Preparing your challenge…

Five untimed puzzles. Daily progress and personal bests save in this browser. Practice is unlimited. Hints reduce the round score by 15 points; a revealed solution earns 0. No leaderboard or online opponent.

How to play Simultaneous Equations

Solve both equations together. Enter x and y as signed numbers. Advanced practice adds a third equation and a z input. Every puzzle has a unique solution. Use elimination or substitution; a worked solution is available.

Choose Daily challenge for today’s shared set, or a practice level for a fresh set. Daily difficulty increases over five rounds. You may retry an incorrect answer; each incorrect check reduces that round’s score by 10. Hints cost 15. Reveal gives the worked solution for 0 points. Reloading resumes your daily round.