ECZ 2023 · O-Level Paper 1 — Index Notation
Solve the equation 2x + 3 = 116.
- A. x = 7
- B. x = 1
- C. x = -1
- D. x = -7
Verified working — step 1
Write both sides as powers of the same base - and remember that a fraction 1 over a power means a NEGATIVE index.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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