MathsYear 9Algebra
Simultaneous equations introduction
Solve simple simultaneous equations using elimination or substitution
What you'll learn
- 1
Imagine you have two scales—one with apples 🍎 and bananas 🍌, and another with the same fruits. Each scale tells you a secret about how many there are!
- 2
If 1 apple + 1 banana = 5, and 1 apple = 2, how many bananas are there? 🍎🍌
- 3
Let's solve: 2x + y = 7 and x + y = 5 together.
- 4
Use the bar model to find x and y: x + y = 8 and 2x + y = 12.
- 5
If x + y = 8 and 2x + y = 12, what is x?
- 6
Which step comes first when solving simultaneous equations?
- 7
If 3x + y = 10 and x + y = 4, what is y?
Practise Simultaneous equations introduction with Whizlo
Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 13–14. Aligned to the UK National Curriculum.