SOLUTION: the sum of two whole numbers is 72 the diffenence between them is 48 what is the number?

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Question 139370: the sum of two whole numbers is 72 the diffenence between them is 48 what is the number?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=72
x=72-y
x-y=48
(72-y)-y=48
72-2y=48
-2y=48-72
-2y=-24
y=-24/-2
y=12 answer for one of the numbers.
x=72-12
x=60 answwr for the other number.
proof
12+60=72
72=72