Answer and explanation

Correct answer: C.

  1. Step 1: Multiply both sides by LCM 12: . Step 2. Expand brackets: . Step 3. Rearrange: . Step 4. Divide by and reverse inequality: . **Answer: . Why not the others:** Forgetting to reverse the sign gives .

Practise more Number, Numeration, Sets, Sequences and Algebra.

Free questions with an explanation for every one, and full timed Unified Tertiary Matriculation Examination mock tests.