Question 82037
2X-Y=4, -Y=-2X+4, Y=-2X/-1+4/-1, Y=2X-4
2X-Y=6, -Y=-2X+6, Y=-2X/-1+6/-1, Y=2X-6
{{{ graph( 300, 200, -6, 5, -10, 10, y = 2x -4, y= 2x -6) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = 2x -4 and y = 2x -6). 
NO UNIQUE SOLUTION TO THESE 2 EQUATIONS.