一元一次不等式组100道计算题.doc

文档介绍：1 2x 3 x
1.
5x 4x 1

3x
1
4
x
5
1 2x
2x
x
2
3x
2
4x

2x 1 x
x 2 4 x 1

x 3
x
4
1
( x

14
4

2x
3
0
2x
3
7
x
3 (2 x 1)
4
2
41.
2
0
5x
6
9
1
3x
3x
1
2x
2
2x
7
x
1 1 x
3
5x 3x
3
3x
2
2( x
1)
43.
x
2
1
2
x
8
4x
1
3x
6
5
5
x
3
3
2x
7
5
2x
2x
3
9
x
4 2 x 1 5
x
1
3 x
6 x 1 5
2
2
x
3x
7
x
1
x
7
0
x
3
0
x
2( x
1)
2
2
4
7x
1
.
3
x
9
0
2
1
1
5
x
2
1
(7
x)
(4x 5)
x
5
0
x
x
3
3
5
4
x
3
x
x
3
2
x
2
2 x
3
5
3x
4
2
3
x
2
2
3( x 1)
3x
2
4
1
1 3( x
1)
8 x
x
1
2x
5
1
3
1
2( x 2)
4
x
4
3( x
2)
x
x
2

5
3
1
2 x
2x
1
x
5x
2
6( x 1)
1
2
x
3
3
4 x
3
3(2 x
1)
x
3 2
x
x
1
0
3 x
1 x
1
5
3( x 1)
1
2( x 1)
3( x
2)
5x
2
2