ECZ 2016 · GCE Paper 1 — Algebra
Simplify 2m − 4n − 3(3n − m).
- A. −m − 13n
- B. 5m + 5n
- C. 5m − 13n
- D. 5m − 7n
Verified working — step 1
Expand −3(3n − m) = −9n + 3m. Then collect: 2m + 3m = 5m and −4n − 9n = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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