SOLUTION: How would solve this system by graphing? x + y = 3 x + y = -1

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Question 121809: How would solve this system by graphing?

x + y = 3 x + y = -1
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X+Y=3 OR Y=-X+3 (RED LINE)
X+Y=-1 OR Y=-X-1(GREEN LINE)
BECAUSE THESE 2 LINES DO NOT INTERSECT THERE IS NO UNIQUE SOLUTION.
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+-x+%2B3%2C+y+=+-x+-1%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -x +3 and y = -x -1).