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WAEC Mathematics 2011 Question 2

Question 2

Linear and Simultaneous Equations

Solve for x in the equation (3/5)(2x − 1) = (1/4)(5x − 3).

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

Answer: D (3)

Explanation

Multiply by 20: 12(2x − 1) = 5(5x − 3), so 24x − 12 = 25x − 15 and x = 3.