Set 11: Linear Equations (Intermediate)

Choice B is correct. Choice C is the correct answer. 1. Subtract 5 x: $5x - 20 = 5$ 2. Add 20: $5x = 25$ 3. Divide by 5: $x = 5$ 4. Verify: $10(5) - 20 = 30$ and $5(5) + 5 = 30$ ✓ Choice A is incorrect because it results from an error in the solution process. Choice C 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.