Question 48219
X+Y=2(X-Y) & Y=6+2X OR X+Y=2X-2Y OR X=3Y THEN Y=6+2*3Y OR Y=6+6Y OR 5Y=-6 OR

Y=-6/5 THEN X=3(-6/5) OR X=-18/5 

PROOF -6/5=6+2*-18/5 OR -6/5=6-36/5 OR 

-6/5=30/5-36/5 OR -6/5 =(30-36)/5 OR -6/5=-6/5