1.
(x-3)/2=-(x+1)/3
x=7/5
2.
(x-3)/2+[-(x+1)/3]=0
x=11
3.
(x-3)/2+1=(x+1)/3
x=5
二
y=2x
(10y+x)-(10x+y)=36
联立解得
x=4 and y=8
两位数是48
1.
(x-3)/2=-(x+1)/3
x=7/5
2.
(x-3)/2+[-(x+1)/3]=0
x=11
3.
(x-3)/2+1=(x+1)/3
x=5
二
y=2x
(10y+x)-(10x+y)=36
联立解得
x=4 and y=8
两位数是48