Set 15: Linear Equations (Intermediate)

Choice D is correct. Choice A is the correct answer. 1. Start with the equation: $2(3 x + 1) - 4 = 10$ 2. Add 4 to both sides: $2(3 x + 1) = 14$ 3. Divide by 2: $3x + 1 = 7$ 4. Subtract 1: $3x = 6$ 5. Divide by 3: $x = 2$ 6. Verify: $2(3(2) + 1) - 4 = 2(7) - 4 = 14 - 4 = 10$ ✓ Choice D 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 C is incorrect because it results from an error in the solution process.