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Prerequisites

- A1a – Using and interpreting algebraic notation
- A2a – Substituting numerical values into formulae and expressions
- A4a – Simplifying and manipulating algebraic expressions by collecting like terms (basic)
- A4b – Multiplying a single term over a bracket
- A8a – Working with coordinates in all four quadrants
- A9a – Plotting straight-line graphs of the form y = mx + c
- A17a – Solving simple linear equations in one unknown algebraically
- A17b – Solving linear equations in one unknown algebraically where the unknown is on both sides of the equation
- A19a – Solving two linear simultaneous equations algebraically by elimination

# Solving two linear simultaneous equations graphically or algebraically by substitution

Teacher resources

**Teachers**: log in to access the following:

- Slides in PPTX (with click-to-reveal answers)
- Slides in PDF (one slide per page, suitable for importing into IWB software)

- Worksheet (with space for student work)
- Handout (slides with exercises only; 4 per page for reduced printing)

- Skills drill (15 questions on one side of A4; answers included)

Links to past exam questions

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