1.2X+3Y=4 2X-3Y=6 2.3(X-1)=Y+55(Y-1)=3(X+5)3.X/2-(Y-2)/6=(X+Y)/3+1(X-6)/10+Y=X/2+21/54.2x+3y=133x+2y=125.5x+8y=717x+y=286.3x+4=6yy-4x=4 7.2X+3Y=11Y-2X=18.2X-3Y=52X-8Y=39.3X-2Y=62X-5Y=410.4X+3Y=62X+Y=4