I can not seem to ge this one right
y=7-x, 2x-y=8
x + y = 7
2x - y = 8
Now add the two equations above, both sides.
3x = 15
x = 5
y = 7-x = 2
y=7-x, 2x-y=8
2x - y = 8
Now add the two equations above, both sides.
3x = 15
x = 5
y = 7-x = 2