Yes. You can find the x and y intercepts of each equation, plot those, and connect.
In this case...
2x - y = 4 and x + y = 5
To find x intercept, plug in 0 for y. To find y intercept, plug in 0 for x.
2x - 0 = 4 0 - y = 4
2x = 4 -y = 4
x = 2 y = -4
(2,0) (0,-4)
and...
x + 0 = 5 0 + y = 5
x = 5 y = 5
(5,0) (0,5)