x=-3/4
x=1/3
y=8/9
x=-12����1,3x+3=-5x-33x+5x=-68x=-6x=-3/42,x+5=-2��x-3��x+5=-2x+6x+2x=6-5x=1/33, 2y-1/3-2-y/2=-13y/2=-1+1/3+23y/2=4/3y=8/94,1/4x+5/4=1/7x+1/7-5/283/28x=-35/28+4/28-5/28x=-12