WAEC Mathematics 2009 Question 35

Question 35

Linear and Simultaneous Equations

Solve: (2x + 1)/6 − (3x − 1)/4 = 0.

  1. A.1
  2. B.1/5
  3. C.−1/5
  4. D.−1
Show the answer and explanation

Answer: A (1)

Explanation

Multiply by 12: 2(2x + 1) − 3(3x − 1) = 0, so 4x + 2 − 9x + 3 = 0, −5x = −5 and x = 1.