(1)x-2y=-1,x:2=y:3 (2)y/3-(x+1)/6=3 2(x-y/2)=3(x+y/18)
问题描述:
(1)x-2y=-1,x:2=y:3 (2)y/3-(x+1)/6=3 2(x-y/2)=3(x+y/18)
答
(1)x=1,y=1
(2)x=1,y=1=_,= 就忽悠我吧 孩子你以为傻得呢。呵呵应该是(1)x=0.5,y=0.75 (2)没错啊