Question 305775
2y=4-6x
y=-6x/2+4/2
y=-3x+2 (red line)
3y+9x=6
3y=-9x+6
y=-9x/3+6
y=-3x+6 (green line)
{{{ graph( 300, 200, -6, 5, -10, 10, -3x +2, -3x +6) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -3x +2 and -3x +6).
There is no unique solution for these 2 equations.