Question 85780
5X+4Y=12. 4Y=-5X+12. Y=-5X/4+12/4, Y=-5X/4+3 (RED LINE)
X+3Y=-2, 3Y=-X-2, Y=-X/3-2/3 (GREEN LINE)
{{{ graph( 300, 200, -6, 5, -10, 10, y = -5x/4 +3, y = -x/3 -2/3) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -5x/4 +3 and y = -x/3 -2/3).