Respuesta :

Let the two numbers be x and y.

We know that:

x+y=72

x-y=12

Sum the two equations:

2x=84

Divide both sides by 2:

x=42

Plug this value for x in one of the two equations:

42-y=12 ---> y=42-12=30

ariee2049
30 and 42 because when add to is equal to 72