<PRE><B>Question 123802</B>
Y+2X=-2 OR Y=-2X-2
6X+3(-2X-2)=12
6X-6X-6=12
0X=18 THIS SHOWS THAT THERE IS NO UNIQUE SOLUTION TO THESE 2 EQUATIONS.
PROOF
Y=-2X-2 (RED LINE)
6X+3Y=12
3Y=-6X+12
Y=-6X/3+12/3
Y=-2X+4 (GREEN LINE)
{{{ graph( 300, 200, -6, 5, -10, 10, y = -2x -2, y = -2x +4) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions y = -2x -2 and y = -2x +4). 
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