Answer and explanation

Correct answer: C.

  1. Step 1: Add to both sides: . Step 2. Divide by : . **Answer: . Why not the others:** skips the division, and subtracts the constant instead of adding it.

Practise more Algebra, Calculus, Geometry and Probability.

Free questions with an explanation for every one, and full timed Bacalaureat Moldova mock tests.