← Mathematics · Grade 10

Chapter 3

Pair of Linear Equations in Two Variables

Read the ideas in context, then work through short guided lessons that meet you at your current level.

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How to study this:The engine: retrieval and spacing

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Sections

Work through it section by section

Open any section. You read the idea first, then answer questions on it — and you can start wherever you like.

Not startedIn progressMasteredPaused

1. Where two lines meetNot started

2. Before you startNot started

3. One equation, one line, endless solutionsNot started

4. The ratio testNot started

5. The three outcomes6 ideasNot started

6. Solving it: substitution and elimination2 ideasNot started

7. Turning words into a pair of equationsNot started

8. Same signs subtract, opposite signs addNot started

9. Worked: solving by the graphical methodNot started

10. Worked: classifying three pairs by ratioNot started

11. Worked: solving by substitutionNot started

12. Worked: solving by eliminationNot started

13. Worked: elimination finds infinite solutionsNot started

14. Worked: a situational problem, solvedNot started

15. RecapNot started

16. Where you will meet thisNot started

17. Practice set: Exercise 3.1Not started

18. Practice set: Exercise 3.2Not started

19. Practice set: Exercise 3.3Not started