0580/21 Oct/Nov 2021, Question 17: Rearranging Formulas
Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 4 marks
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The question, in short
Rearrange y = (3x − 2)/(1 − x) to make x the subject of the formula.
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Solution · 4 marks
- 1y(1 − x) = 3x − 2
- 2y − xy = 3x − 2
- 3y + 2 = 3x + xy
- 4y + 2 = x(3 + y)
- 5x = (y + 2)/(y + 3)
Answer(y + 2)/(y + 3)
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Also searched as: 0580/21/O/N/21 · 0580_w21_qp_21 · 0580 w21 21 · question 17.
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