At the point (2, 4).
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The lines intersect at (3, 5)
It works out that they intersect at: (4, -7)
zero solutions. If you plot these two lines, you will see that they are parallel and do not intersect.
x = -1 and y = 2 The lines intersect at (-1, 2)
When (the graph of the equations) the two lines intersect. The equations will tell you what the slopes of the lines are, just look at them. If they are different, then the equations have a unique solution..