Question 84148
2X-3Y=6, -3Y=-2X+6, Y=-2X/-3+6/-3, Y=2X/3-2 (RED LINE)
2X+Y=-10, Y=-2X-10 (GREEN LINE)
{{{ graph( 300, 200, -6, 5, -10, 10, y = 2x/3 -2, y = -2x -10) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -2x/3 -2 and y = -2x -10). 
x=-3 & y=-4 or (-3,-4) is the solution/intersect of these two lines.