Without computing, how do you know that the answer to ) is posotive?

Hello, and thank you for posting your question here on

We have a trick in my school named "the cupid rule", where if you're subtracting a negative that's in parenthesis, we put a ♥ over the two negatives, and turn it into a positive, so now it's 7 + 15.

(it's 22)

Hope this helps! ☺♥

6hope this ! ! ’