Question 853447
Two numbers, right?  Not "a number"?.
.
Let A be the first number
Let B be the second number
Here's what we know:
A + B = 108
A - B = 16
Add these together
2A = 124 (the +B and -B have canceled each other out)
Divide by 2
A = 62
.
If A is 62, then B is 108-62, or 46.
Let's plug it in to the second equation to prove it.
A - B = 16
62 - 46 = 16
Success!