0580/21 Oct/Nov 2021, Question 13: Linear Inequalities
Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 3 marks
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The question, in short
Solve the inequality 4 − 3x ≥ (6 − x)/5.
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Solution · 3 marks
- 15(4 − 3x) ≥ 6 − x
- 220 − 15x ≥ 6 − x
- 320 − 6 ≥ 15x − x
- 414 ≥ 14x
- 5x ≤ 1
Answerx ≤ 1
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Also searched as: 0580/21/O/N/21 · 0580_w21_qp_21 · 0580 w21 21 · question 13.
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