SOLUTION: the sum of two number is 18 and their difference is 8. solve the system x+y=18 x-y=8

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: the sum of two number is 18 and their difference is 8. solve the system x+y=18 x-y=8      Log On


   

Question 672265: the sum of two number is 18 and their difference is 8.
solve the system
x+y=18
x-y=8
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

the sum of two numbershighlight%28x%29&highlight%28y%29 is 18 and their difference is 8.

x+y=18

x-y=8

 2x = 26

  x = 13   and y = 5