SOLUTION: Tell wether the systems of equations have only one ordered paias a solution or not. Also explain your answer by telling wether the graphs of the equations are parallel lines, inte

Question 39414: Tell wether the systems of equations have only one ordered paias a solution or not. Also explain your answer by telling wether the graphs of the equations are parallel lines, intersecting lines, or the same lines.
2 x - y = 10
x + y = -1
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
From
2x - y = 10
x + y = -1
we can add the equations to get
3x = 9 and
x = 3
which means
y = -4
Yes, one ordered pair solution and intersecting lines.
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