ECZ 2017 · GCE Paper 1 — Algebra
Simplify 2a − 7b − 2(a − 3b).
- A. −b
- B. b
- C. −13b
- D. 4a − 13b
Verified working — step 1
Expand −2(a − 3b) = −2a + 6b. Then 2a − 2a = 0 and −7b + 6b = …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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