Algebra Basics

Learn algebra from the ground up and keep going until it seems obvious. Twenty-three short lessons explain one idea at a time, then sixty-four questions across eight levels take you from spotting the variables in 7x + 3 to inequalities, proportions, functions and word problems you will actually meet. Each level follows the same six steps: read the concept, practice with a hint on every card, practice again with the hints switched off and the difficulty climbing, take a mixed quiz over everything you have learned, fix your mistakes, then pass a mastery test at 80% to unlock the next level. Every answer comes with a worked explanation, a study tip when you slip, and a line of encouragement whether you get it right or wrong. Whatever you miss is collected in Mistake Review until you answer it correctly again, and weak topics are pulled back in automatically. Symbols, key formulas, ten study tips and the seven mistakes everyone makes are always a tab away. Session history, a week-by-week chart, topic strength, XP, day streaks and achievements show exactly where you stand. Fully offline, with no account, no ads and no tracking.