Alright, so the first thing you would need to do is solve -3+7, which would equal positive 4. Now you need to solve -10-2 which would equal -12.
Now, positive vs negative.
4 is more higher then -12.
So it would be 4 > -12, or otherwords, -3+7 > -10-2
So you would use the > sign.
Hope dis helps! :D <3