不等式组1.2x>1-xx+2<4x-12.x-5>1+2x3x+2<4x3.2/3x+5>1-xx-1<3/4x-1/8

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不等式组1.2x>1-xx+2<4x-12.x-5>1+2x3x+2<4x3.2/3x+5>1-xx-1<3/4x-1/8
不等式组
1.
2x>1-x
x+2<4x-1
2.
x-5>1+2x
3x+2<4x
3.
2/3x+5>1-x
x-1<3/4x-1/8

不等式组1.2x>1-xx+2<4x-12.x-5>1+2x3x+2<4x3.2/3x+5>1-xx-1<3/4x-1/8
1.
2x>1-x
3x>1
x>1/3
x+2<4x-1
3x>3
x>1
大大取大
x>1
2.
x-5>1+2x
x2
x>2
两个不能同时成立
无解
3.
2/3x+5>1-x
5/3x>-4
x>-12/5
x-1<3/4x-1/8
1/4x

1.x>1
2.x<-6或x>2
3.-5/12