Question 915166: The sum of two numbers is 76 and their difference is 52. Find the two numbers.
Help Please.
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! The sum of two numbers is 76 --> x+y = 76
and their difference is 52 ---> x-y = 52
x+y = 76
x-y = 52
Add the equations
x+y = 76
x-y = 52
---------
2x+0y = 128
2x = 128
x = 128/2
x = 64
Use this to find y
x+y = 76
64+y = 76
y = 76-64
y = 12
So x = 64 and y = 12. Notice how 64+12 = 76 and how 64 - 12 = 52.
=======================================================
The two numbers are 64 and 12.
Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html
Thanks,
Jim
|
|
|
