3(x-1)+13>5x-2(5-x)
3x-3+13>5x-10+2x
3x-5x-2x>3-13-10
-4x>-20
x<5
5-(2x+1)<3-6x
5-2x-1<3-6x
-2x+6x<3-5+1
4x<-1
x< -1/4
3(x-1)+13>5x-2(5-x)
3x+10>7x-10
4x<20
x<5
5-(2x+1)<3-6x
4-2x<3-6x
4x<-1
x<-1/4
{x|x<5}n{x|x<-1/4}={x|x<-1/4}
则不等式组的解集为{x|x<-1/4}
3(x-1)+13>5x-2(5-x)
3x-3+13>5x-10+2x
7x-3x<10+10
4x<20
x<5
5-(2x+1)<3-6x
5-2x-1<3-6x
6x-2x<3-4
x<-1/4