Choice Dhoice D is the correct answer.

1. Distribute: $4x - 8 = 2x + 4$
2. Subtract 2x: $2x - 8 = 4$
3. Add 8: $2x = 12$
4. Divide by 2: $x = 6$
5. Verify: $4(4) = 16$ and $12 + 4 = 16$ ✓

Choice Dhoice C is incorrect because calculation error.

Choice Dhoice B is incorrect because calculation error.

Choice Dhoice C is incorrect because calculation error.