Solve .

Answer and explanation

Correct answer: B.

  1. Step 1: Multiply every term by 12: .
  2. Step 2: Expand: , so .
  3. Step 3: , so .
Answer
.
Why not the others: : drops the when multiplying the first bracket by 12, giving . : forgets to multiply the right-hand side by 12, giving . : expands as .

Practise more Algebra.

Free questions with an explanation for every one, and full timed ESAT (Engineering and Science Admissions Test) mock tests.

All Algebra questionsTake a mock test

More Algebra questions