SOLUTION: Find the point of intersection: x+2y-1=0 and 2x+y+1=0

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Question 139137: Find the point of intersection:
x+2y-1=0 and 2x+y+1=0
Answer by checkley77(12569) About Me  (Show Source):
You can put this solution on YOUR website!
x+2y-1=0
2y=-x+1
y=-x/2+1/2 (red line)
2x+y+1=0
y=-2x-1 (green line)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x%2F2+%2B1%2F2%2C+-2x+-1%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -x/2 +1/2 and -2x -1).
ANSWER (-1,1).