You can put this solution on YOUR website! Call the numbers x and y.
x = (3/4)y - 5 and
x + y = 79 which leads to x = 79 - y
Since they both equal x we can set them equal and get
(3/4)y - 5 = 79 - y
Add y to both sides and add five to both sides and get
1.75y = 84
Now divide by 1.75 and get
y = 48
x = 31