解方程组 (x/2)-(5y/3)=-12x+(y-1)=-14由x+(y-1)=-14得:x==-13-y由(x/2)-(5y/3)=-12得:3x-10y+72==0把x带入3x-10y+72==0得:3(-13-y)-10y+72==0 13y==63 y==63/13 x==-132/13