MathsYear 9Algebra

Simultaneous equations introduction

Solve simple simultaneous equations using elimination or substitution

What you'll learn

  1. 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. 2

    If 1 apple + 1 banana = 5, and 1 apple = 2, how many bananas are there? 🍎🍌

  3. 3

    Let's solve: 2x + y = 7 and x + y = 5 together.

  4. 4

    Use the bar model to find x and y: x + y = 8 and 2x + y = 12.

  5. 5

    If x + y = 8 and 2x + y = 12, what is x?

  6. 6

    Which step comes first when solving simultaneous equations?

  7. 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.