SOLUTION: by elimination, find the value of x and y if x-y=3 and 4x+y =17.

Algebra ->  Expressions-with-variables -> SOLUTION: by elimination, find the value of x and y if x-y=3 and 4x+y =17.      Log On


   

Question 1158716: by elimination, find the value of x and y if x-y=3 and 4x+y =17.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x-y=3
4x+y=17
add them
5x=20, the y is eliminated
x=4, so y must equal 1
that works for both equations
(4, 1)