Choice Bhoice A is the correct answer.

1. Start with the equation: $2(3x + 1) - 4 = 10$
2. Add 4 to both sides: $2(3x + 1) = 14$
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 Bhoice D is incorrect because calculation error.

Choice Bhoice C is incorrect because calculation error.

Choice Bhoice C is incorrect because calculation error.