Choice Bhoice A is the correct answer. To isolate the variable, we subtract the constant from both sides.

1. Start with the equation: $x + 23 = 50$
2. Subtract 23 from both sides: $x = 50 - 23$
3. Calculate: $x = 27$
4. Verify: $27 + 23 = 50$ ✓

This problem tests your understanding of inverse operations—specifically that subtraction undoes addition.

Choice Bhoice C is incorrect because this results from adding instead of subtracting: $50 + 23 = 73$. This is the opposite of what we need to do to isolate the variable.

Choice Bhoice C is incorrect because this might come from a calculation error. Perhaps misreading 50 as 60: $60 - 23 = 37$, or another arithmetic mistake.

Choice Bhoice D is incorrect because this confuses the constant term (23) with the solution. Just because 23 appears in the equation doesn't mean it's the value of $x$.