Choice Bhoice D is the correct answer. This equation asks us to find which value makes the equation true.

1. Start with the equation: $8x = 64$
2. Divide both sides by 8: $x = \frac{64}{8}$
3. Simplify: $x = 8$
4. Verify: $8(8) = 64$ ✓

Interestingly, in this problem, the coefficient (8) equals the solution (8), but this is just a coincidence based on the specific numbers chosen.

💡 Mental Math Tip: Recognizing that $64 = 8 \times 8$ can help you solve this quickly.

Choice Bhoice C is incorrect because this comes from subtracting: $64 - 8 = 56$. Subtraction is not the inverse of multiplication.

Choice Bhoice C is incorrect because this results from adding: $64 + 8 = 72$. Addition also doesn't undo multiplication.

Choice Bhoice D is incorrect because this results from multiplying: $64 \times 8 = 512$. This multiplies both numbers together instead of dividing to isolate $x$.