MathsYears 7–9Algebra

Solving linear equations

Solve one-step and two-step linear equations including unknowns on both sides

What you'll learn

  1. 1

    Imagine a seesaw with a bag of apples on one side 🛝. The bag has some apples inside, and we don't know how many — let's call that number 'x'.

  2. 2

    If the seesaw is balanced, what does that mean?

  3. 3

    Let's solve x + 3 = 7 together. 🧩

  4. 4

    Use the number line to solve x + 2 = 9. Start at 9 and jump back 2 to find x. 🐸

  5. 5

    If x + 2 = 9, what is x?

  6. 6

    Now try one with subtraction: x - 4 = 5. 🧩

  7. 7

    If x - 4 = 5, what is x?

Practise Solving linear equations with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 11–14. Aligned to the UK National Curriculum.

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