SOLUTION: The sum of two numbers is 47, and their difference is 15. what is the larger number?

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Question 287948: The sum of two numbers is 47, and their difference is 15. what is the larger number?
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
sum of two numbers: x%2By=47
difference: x-y=15
x has to be larger then y to get a possitive 15
so i would use elimination method to solve for x
x%2By=47
x-y=15 add the equations together straight down
2x%2B0=62
highlight%28x=31%29 x is the largest number
___________
check
31%2By=47
y=16
31-y=15
-y=-16
y=16
16=16 so its correct.