2024年4月17日发(作者：2009年湖北数学试卷)
解方程及解比例练习题
一、解比例:
1
1
123
x
:10=
4
:
3
0.4:
x
=1.2:2
2.4
=
x
1
1
1
2
:
5
=
4
:
x
1.25:0.25=
x
:1.6
2
24
x
:
3
=6:
25
2.8:4.2=
x
:9.6
3
1
x
:24=
4
:
3
0.6∶4＝2.4∶
x
31
4
∶
2
＝
x
∶
4
5
10∶50＝
x
∶40
0.8:4=
x
:8
28
9
=
x
4.5
6
x
=
2.2
1
1
1
10
:
x
=
8
:
4
43
8:
x
=
5
:
4
6∶
x
＝
1
5
∶
1
3
11
12
∶
4
5
＝
25
36
∶
x
∶
x
＝5.2∶20
3
4
:
x
=3:12
3654
x
=
3
45:
x
=18:26
2.8:4.2=
x
:9.6
5
11
8
:
6
=
x
:
12
0.61.5
12
＝
x
x
∶
11
14
＝0.7∶
2
x
∶3.6＝6∶18
1.3
11164.683
x
∶＝∶
x
＝ ＝
3209
二、解方程：
3
x
－
2
7
x
=
4
3
1
x
×
5
=20×
4
3
x
＋
8
x
＝121
6
x
＋5 =13.4
27
x
÷
7
=
16
12
5
÷
x
=
3
10
6
2613
x
÷
35
=
45
×
25
32
10
x
－21×
3
=4
0.2
x
2
x
+
2
5
=
3
5
4
25% + 10
x
=
5
55
5
x
－3×
21
＝
7
3
4
x
13
4
8
73
x
＋
8
x
=
4
325
5
x
=
72
4
x
－3 ×9 = 29
x
1
4
x20
864
70%
x
+ 20%
x
= 3.6
x
- 15%
x
= 68
21
3
x
÷
4
＝12
3
3
x
=
8
2
4
x
－6×
3
=2
8
116
9
x
=
6
×
51
11
2
x
+
6
x
= 4
2(x2.6)8
213
6
x
＋5 =13.4
x
-
x
= 4
x
－6＝38
5310
15844
15
5
x
=
19
21
x
=
15
x
÷
5
=
28
21
3
x
÷
4
=12
6
2613
x
÷
35
=
45
÷
25
4+0.7
x
=102
3
x
-
8
x
=400
x
+
3
7
x
=18
21
3
x
×
3
+
2
=4×
8
0.36×5-
3
4
x
=
3
5
x
- 0.8
x
= 16+6
325
5
x
=
72
1
x
-0.25=
4
21
3
x
+
2
x
=42
x
-0.125
x
=8
x
×(
1
6
+
3
8
)=
13
12
3
x
－
7
x
＝12
2
3
(
x
- 4.5) = 7
20
x
– 8.5= 1.5
8
116
9
x
=
6
×
51
x
4
=30%
1
x
+
4
x
=105
36
3
x
=
4
5
x
－0.375
x
=
6
5
x
－2.4×5＝8
1
2
x
- 25%
x
= 10
x
-
4
5
x
-4= 21
3
382
x
＋25%
x
=90
x
－
x
=
x
－
x
=
4
797
3
1
23
2
x
+ = 70%
x
+ 20%
x
= 3.6
x
×
5
=20×
4
55
4
25% + 10
x
=
5
55
5
x
－3×
21
＝
7
3
4
x
13
4
8
73
x
＋
8
x
=
4
325
5
x
=
72
4
x
－3 ×9 = 29
x
1
4
x20
2
5
x
-
13
3
x
=
10
x
- 15%
x
= 68
21
3
x
÷
4
＝12
3
3
x
=
8
2
4
x
－6×
3
=2
8
116
9
x
=
6
×
51
11
2
x
+
6
x
= 4
2(x2.6)8
4
x
－6＝38
3
x
＋
8
x
＝121
6
x
＋5 =13.4
27
x
÷
7
=
16
12
5
÷
x
=
3
10
6
2613
x
÷
35
=
45
×
25
32
10
x
－21×
3
=4
6
x
＋5 =13.4
15
5
x
=
19
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