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WAEC Mathematics 2013 Question 13

Question 13

Linear and Simultaneous Equations

If ½x + 2y = 3 and (3/2)x − 2y = 1, find (x + y).

  1. A.3
  2. B.2
  3. C.1
  4. D.0
Show the answer and explanation

Answer: A (3)

Explanation

Adding: 2x = 4, so x = 2. Then 1 + 2y = 3 gives y = 1. x + y = 3.