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4024/11 May/Jun 2024, Question 22: Rearranging Formulas

Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks

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The question, in short

Rearrange the formula a = (5b + 2x)/(x − 3) so that x is the subject.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Solution · 3 marks

  1. 1a(x − 3) = 5b + 2x
  2. 2ax − 3a = 5b + 2x
  3. 3ax − 2x = 5b + 3a
  4. 4x(a − 2) = 5b + 3a
  5. 5x = (5b + 3a)/(a − 2)

Answer(5b + 3a)/(a − 2)

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Also searched as: 4024/11/M/J/24 · 4024_s24_qp_11 · 4024 s24 11 · question 22.
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