Question 184265
y=-3x-7 (red line)

15x+5y=-35
5y=-15x-35
y=-15x/5-35/5
y=-3x-7 (green line)
{{{ graph( 300, 200, -6, 5, -10, 10, -3x -7, -3x -7) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -3x -7 and -3x -7).
notice these two e