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A system of equations is given below.
y-x-3 and y=-x-3
Which of the following statements best describes the two lines?
O They have the same slope but different y-intercepts, so they have no solution.
O They have the same slope but different y-intercepts, so they have one solution.
O They have different slopes but the same y-intercept, so they have no solution.
They have different slopes but the same y-intercept, so they have one solution.

Please help