1. The problem asks to solve exercise 3.4 from Essential Mathematics page 37. Since the exact question is not provided, I will assume it involves algebraic manipulation or solving an equation as typical for such exercises. 2. Please provide the exact problem statement or the equation from exercise 3.4 so I can assist you step-by-step. 3. Once you provide the problem, I will break down the solution into clear numbered steps with explanations and LaTeX formatting. Please share the specific question from exercise 3.4.