已知:3(6x-10)+4(2y+1)=41 ①4（2x+5）-3（3y-1）=-22 ②由①②化简得:18x+8y=67 ③8x-9y=-55 ④由③?9+④?8得:162x+72y+64x-72y=603-440 化简得:226x=163解得:x=163/226把x代入③得:8y=6104/113解得y=763/113答案:x...