One integer added to another integer gives a sum of 2. when the larger integer is subtracted from the smaller integer, the difference is -14. what could the two integers be?

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.