Question 702924
5x + 4y = -12 
4y=-5x-12
y=-5x/4-12/4
y=-1.25x-3 the red line.
3x - 4y= -20
-4y=-3x-20
y=-3x/-4-20/-4
y=.75x+5 the green line.
{{{ graph( 300, 200, -6, 5, -10, 10, -1.25x -3, .75x +5) }}}
x=-4 
y=2