WAEC Mathematics 2007 Question 44

Question 44

Inequalities

For what range of values of x is 4x − 3(2x − 1) > 1?

  1. A.x > −1
  2. B.x > 1
  3. C.x < 1
  4. D.x < −1
Show the answer and explanation

Answer: C (x < 1)

Explanation

4x − 6x + 3 > 1 gives −2x > −2. Dividing by −2 reverses the sign: x < 1.