Exercise 1 — Cambridge IGCSE 0580 Nov 2025 Paper 23 Q27
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IGCSE Algebra — Simultaneous equations Practice Extended
7 Cambridge IGCSE 0580 questions on simultaneous equations at the Extended tier — each with its full mark scheme. For the Core tier on the same skill, click here.
How to approach simultaneous equations — open the study guide
Simultaneous equations on IGCSE 0580
Two equations with two unknowns. Two main methods.
- Elimination: multiply equations to match a coefficient, then add or subtract.
- Substitution: rearrange one equation, substitute into the other.
- Always find both values and check them in the original equations.
Practice exercises
Exercise 2 — Cambridge IGCSE 0580 Nov 2025 Paper 42 Q19
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Exercise 3 — Cambridge IGCSE 0580 Nov 2025 Paper 21 Q8
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Exercise 4 — Cambridge IGCSE 0580 Jun 2025 Paper 23 Q10
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Exercise 5 — Cambridge IGCSE 0580 Nov 2025 Paper 41 Q26
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Exercise 6 — Cambridge IGCSE 0580 Jun 2025 Paper 42 Q9
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Exercise 7 — Cambridge IGCSE 0580 Nov 2025 Paper 43 Q10
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