Answer:
You're not s t u p i d, and the answer is 2.
Explanation:
You first multiply 4 with 1/2, which would be 2.
Then, you multiply 4 with 5/4, which would be 5.
Add those together, and you got 7.
Next, 7 + (-5) (Also known as 7 - 5), is 2
Therefore, it is 2