The first line is y=x-4
Let x=0, we get y=-4 our first coordinate is (0,-4)
Let y=0, we get x=4, second coordinate is (4,0)
Plot the given coordinates on the graph paper, join the line passing through these points as shown in the attached image.
The second line is y=-x+6
Let x=0, we get y=6 our first coordinate is (0,6)
Let y=0, we get x=6, second coordinate is (6,0)
In the similar manner, plot the given coordinates on the graph paper,join the line passing through these points as shown in the attached image.
The solution of the given system of equations is the point of intersection of both the lines which is (5,1). The point of intersection can be seen in the attached image.