(x+y)/3+(x-y)/2=5化简，两边同乘以6：2(x+y)+3(x-y)=30得：5x-y=30····················①2(x+y)-3(x-y)=6化简得：-x+5y=6·············②①+5②得：24y=50解得：y=25/12代入①解得：x=77/12
