Set 15: Linear Equations (Advanced)

Choice A is correct. Choice A is the correct answer. 1. Add 1: $\frac{x}{4} = 3$ 2. Multiply by 4: $x = 12$ 3. Verify: $\frac{12}{4} - 1 = 3 - 1 = 2$ ✓ Choice D is incorrect because it results from an error in the solution process. Choice D is incorrect because it results from an error in the solution process. Choice B is incorrect because it results from an error in the solution process.