0580/13 May/Jun 2026, Question 22: Constructing Equations
Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Non-calculator · 3 marks
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The question, in short
Rectangle has height 6 and width x − 1, with area 5x + 8 cm². Form an equation from this and solve it for x.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 16(x − 1) = 5x + 8
- 26x − 6 = 5x + 8
- 36x − 5x = 8 + 6
- 4x = 14
Answer14
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