Simultaneous equations: substitution
Chapters
- 0:00Introduction
- 0:20Do Now
- 1:00Substituting with a bracket
- 1:52Choosing a method
- 2:14Example 1: a minus sign in the bracket
- 2:55Example 2: x as the subject
- 3:36Your turn
- 4:12Common mistake
- 4:55Worksheet and exit question
Practise simultaneous equations for 15 minutes a day in The Maths Habit, on your phone or in your browser.