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0580/22 May/Jun 2023, Question 18: Rearranging Formulas

Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Calculator · 4 marks

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The question, in short

Rearrange c = 3x/(2x − 5) to make x the subject, showing the algebraic steps.

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

Solution · 4 marks

  1. 1c(2x − 5) = 3x
  2. 22cx − 5c = 3x
  3. 32cx − 3x = 5c
  4. 4x(2c − 3) = 5c
  5. 5x = 5c/(2c − 3)

Answer5c/(2c − 3)

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Also searched as: 0580/22/M/J/23 · 0580_s23_qp_22 · 0580 s23 22 · question 18.
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