123
84 + 39 = 123 84- 39 = 45 84 + 39 = 123 84- 39 = 45
123
The sum of 622 and 84 is 706.
39/84 = 13/28
In math term it would be 45
LCM(84, 39) = 1092
The sum of -18 and 39 is 21.
39.
73-39+84 = 117
89
In the problem 56 + 28 = 84, 84 is the sum.
54 = 47 + 7 84 = 79 + 5 NB 5,7,47,79 are all prime numbers.