2(x-y)/3-x+y/4=-1和6(x+y)-4(2x-y+2)=16
整理得:5x-11y=-12(1)
-2x+10y=24(2)
(1)×2+(2)×5得:
-22y+50y=-24+120;
28y=96;
y=24/7;
带入(1)得:
5x-264/7=-12;
5x=180/7;
x=36/7;
如果本题有什么不明白可以追问,
2(x-y)/3-x+y/4=-1和6(x+y)-4(2x-y+2)=16
整理得:5x-11y=-12(1)
-2x+10y=24(2)
(1)×2+(2)×5得:
-22y+50y=-24+120;
28y=96;
y=24/7;
带入(1)得:
5x-264/7=-12;
5x=180/7;
x=36/7;
如果本题有什么不明白可以追问,