58 - 16 = 42, 42/2 = 21, 21 + 16 = 37. Your numbers are 21 & 37
7 & 9
11 and 5
16 and 35
10 and 6
15 + 1 = 16 sum 15 - 1 = 14 difference
7 & 9
11 and 5
5 & 21
16 and 35
The numbers are 15 and 1
10 and 6
The two numbers whose sum is 58 and whose difference is 16 are 21 and 37.
15 + 1 = 16 sum 15 - 1 = 14 difference
16 and 20
16 and -5
16 and 21
7 and 9