SOLUTION: half the sum of two numbers is 15. half their difference is 8.what is the numbers

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Question 415121: half the sum of two numbers is 15. half their difference is 8.what is the numbers
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
1/2(x+y)=15
x+y =15*2
x+y=30.......1
1/2(x-y)=8
x-y =8*2
x-y=16.......2
Add (1) & (2)
2x=46
/2
x= 23
y=7
.....