(X+Y)/2【原本应是二分之X+Y的但我不会打分号】+(X-Y)/3=6
整理得:3(x+y)+2(x-y)=36;
3x+3y+2x-2y=36;
5x+y=36(1)
4(x+y)-5(x-y)=2
4x+4y-5x+5y=2;
-x+9y=2(2)
(1)+(2)×5得:
y+45y=36+10;
46y=46;
y=1;
带入(1)得:
5x=35;
x=7;
X+2Y=1(1)
2X-3Y=2(2)
(1)×2-(2)得:
4Y+3Y=0;
Y=0;
带入(1)得:
x=1;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,