Question 275196
-2x-5y=7
-5Y=2X+7
Y=2X/-5+7/-5 
Y=-2X/5-7/5 (RED LINE)
7X+Y=-8
Y=-7X-8 (GREEN LINE)
{{{ graph( 300, 200, -6, 5, -10, 10, -2x/5 -7/5, -7x -8) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -2x/5 -7/5 and -7x -8). 
Intercept=(-1,-1)