Answer:
(x=9.5 and y=6.5) or ( x=6.5 and y = 9.5)
Explanation:
Let equations be
x+y = 16
If
x-y = 3
Now, Adding both equations, we get
x+y+x-y = 16+3
2x = 19
x=19/2 = 9.5
y = 16-9.5 = 6.5
Now y-x = 3
Now, Adding both equations, we get
x+y+y-x = 16+3
2y = 19
y=19/2 = 9.5
x = 16-9.5 = 6.5
