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WAEC Mathematics 1996 Question 11

Question 11

Linear and Simultaneous Equations

If 3p − q = 6 and 2p + 3q = 4, find q.

  1. A.0
  2. B.½
  3. C.2/3
  4. D.1
  5. E.3 3/7
Show the answer and explanation

Answer: A (0)

Explanation

Multiply the first equation by 3: 9p − 3q = 18. Add to 2p + 3q = 4: 11p = 22, so p = 2. Then 3(2) − q = 6 gives q = 0.