Lemmara logoLemmaraWorked solution

4024/13 May/Jun 2025, Question 17: Rearranging Formulas

Cambridge O Level Mathematics 4024 · Paper 13 (Non-calculator) · Non-calculator · 3 marks

اقرأ هذا الحل مشروحاً بالعربي ←

The question, in short

Rearrange the equation ax = (3x + 2)/5 to make x the subject.

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

Solution · 3 marks

  1. 15ax = 3x + 2
  2. 25ax − 3x = 2
  3. 3x(5a − 3) = 2
  4. 4x = 2/(5a − 3)

Answer2/(5a − 3)

Stuck on a step? Read the free lesson: Rearranging Formulas

Practise more rearranging formulas questions

Real 4024 past-paper questions, marked on your working like the exam, with a worked solution for every part.

Practise free on Lemmara

More past-paper questions on rearranging formulas

Also searched as: 4024/13/M/J/25 · 4024_s25_qp_13 · 4024 s25 13 · question 17.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.