方程组 (3/X+Y)+2/(X-Y)=6 3(X+Y)-2(X-Y)=28_其他解答

方程组 (3/X+Y)+2/(X-Y)=6 3(X+Y)-2(X-Y)=28

人气：372 ℃　时间：2019-12-01 13:56:13

解答

3/X+Y)+2/(X-Y)=6 .a
3/(X+Y)-2(X-Y)=28.b
a+b
6/(X+Y)=34
17X+17Y-3=0
a-b
4/(X-Y)=-22
11x-11y+2=0
x=-1/374
y=67/374