ECZ 2012 · O-Level Paper 1 — Algebra
Simplify 3x - 7(2x - 5).
- A. 35 - 11x
- B. 35 + 11x
- C. -11x - 35
- D. 5 - 11x
Verified working — step 1
Expand the bracket first - the -7 multiplies BOTH terms, and -7 × (-5) comes out positive.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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