Oh, dude, that's like one of those math riddles that make you feel smart for a second. So, the numbers that add up to 7 and multiply to 15 are 3 and 5. It's like finding the perfect combo for a math party, but don't worry, I won't make you show your work.
6*1
-6 and -1.
-12 and +5
19
-313
29
55
-25
-27
7
-713
16