4024/21 Oct/Nov 2025, Question 23: Equations with fractions
Cambridge O Level Mathematics 4024 · Paper 21 (Calculator) · Calculator · 4 marks
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The question, in short
Solve x/(x + 3) − 4/(x − 5) = 1.
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Solution · 4 marks
- 1x(x − 5) − 4(x + 3) = (x + 3)(x − 5)
- 2x² − 5x − 4x − 12 = x² − 2x − 15
- 3−9x − 12 = −2x − 15
- 4−7x = −3
- 5x = 3/7
Answer3/7
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Also searched as: 4024/21/O/N/25 · 4024_w25_qp_21 · 4024 w25 21 · question 23.
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