六年级解方程专项练习题有答案ok
-
六年级解方程专项练习
200
题(有答案)
p>
(
1
)
x
﹣
=
,
(
2
)
x<
/p>
×
×
=
,
(
3
)
﹣
4x=
,
(
4
)
8
×
2.5
﹣
2
x=13.6
(
5
)
0
.78
:
x=3
:
5
,
(
6
)
1
﹣
20
%x=0.4
,
(
8
)
1<
/p>
÷(
x
﹣
)
p>
=6
,
(
9
)
2x
﹣
x=1.2
,
(
p>
10
)
9
×
3
﹣
1.7x=13.4
,
(
11
)
x
﹣
25%x=24
,
(
12
)
x
﹣
+0.2=
,
(
13
)
0.6x+90%x=78
,
(
14
)
20%x
﹣
2.4
×
3=0.8
,
(
15
)
x
﹣
x=42
,
(
16
)
0.6x+3
×<
/p>
2.5=67.5
,
< br>(
17
)
1
÷(
x
﹣
0.45
)
=5
,
(
< br>18
)
x
﹣
2.25=8.25
,
(
19
)
:
x=3
p>
:
12
,
(
20
)
x+0.8
=5.6
,
(
21) 1.4
:
x=1
:
0.75
,
(22) x
×(
2
﹣
)
=24
,
(23)
4x
﹣
=3
,
(
24
)
12
x+7
×
0.3=20.1
,
(
25
)
x+
x=
,
(
26
)
x
:
42=
,
(
27
)
×
0.5+
x=
,
(
28
)
0.8
:
=0.48
:
x
p>
,
(
29
)χ﹣
χ
=
,
(
30
)
42
:
=
χ:
(
31
)
5x
﹣
0.4=75%
,
( 32) 6x
﹣
0.9=4.5
,
(33
)
2
(
x
p>
﹣
3
)
=5.8<
/p>
,
(
34)
1.6x=6.4
,
(35) 4
x
﹣
3
×
9=
29
,
(36
)
16+8x=40
,
(
37
)
x
÷
1.1=3
,
(
38
)
+2x=
,
(
39
)
×
3
﹣
7x=1.04
,
(
40
)
x
< br>﹣
1
﹣
x=2
< br>,
(
41
)
x
﹣
x=14
< br>,
(
42
)
3x
﹣
x=
,
(
43
)
=
,
(
44
)
1.2
:
=
,
(<
/p>
45
)
=
:
p>
,
(
46
)
:
=x
:
0.8
,
(
47
)
x
=
+1
,
(
48
)
1
﹣
25%X+25%x=
+25%x
,
< br>=
,
(
49
)
×
X=
,
(
50
)
(
51
)
5
:
8=x
:
32
,
(
5
2
)
2x+3
×
0.9=24.9
,
(
53
)
5.3x
﹣
2.9x=
,
(<
/p>
54
)
×(
7<
/p>
﹣
2.8x
)
=
1.5
,
(
55
)
x
:
0.3=
:
,
(
56
)
150%x+66=99
(<
/p>
57
)
x+6
﹣
0.8x=16
(
58
)
<
/p>
(
59
)
(
p>
60
)
3
÷(
p>
X
﹣
)
=1.3
(
61
)
(<
/p>
X+0.5
):
2
=
(
X
﹣
4
):
,
(
62
)
X
÷
0.05=3.528
,
(
63
)
2X
﹣
4
×
6=80
,
(
64
)
4
×
4.5
﹣
3X=6.38
,<
/p>
(
65
)
p>
4X
﹣
7.2=10
,
(
66
)
11.5X+X=20
,
(
67
)
3.8
×
12+15X=87.6
,
(
68
)
< br>6X+5=17
,
(
69
)
0.6
×(
p>
2.5+X
)
=4.2
,
(
70
)
:
=X
:
,
(
71
)
,
(
72
)
<
/p>
(
73
)
,
p>
(
74
)
4
(
+x
)
=
,
(
75
)
×
0.25+
x=
,
(
76
)
x
﹣
,
(
77
)
200
:
6=x
:
,
(
78
)
4
÷
X=
,
(
< br>79
)
8
(
x
﹣
2
)
=2
(
x+7
),
(
80
)
:
18%=
,
﹣
2x=
,
(
81
)
x+
x=46
,
(
82
)
(
8
3
)
:
x=
:
,
(
84<
/p>
)
=
,
(
85
)
5
(
3x
﹣
4
)﹣
2
(
x
﹣
1
)
=5
(
2x
﹣
1
< br>)
(
86
)
=
,
(
87
)
8
(
2
X
﹣
7
)
=5
(
X+13
),
(
88
)
3
(
x+4.5
)
=60
,
(
89
)
1.6x+2.4=7.52
,
(
90
)
3
(
x
﹣<
/p>
0.8
)
=6.3
,
(
91
)
28.4
﹣
5x=5.8
,
(
92)x
:
=
(
93
)
+2x=
,
(
94
)
x=15%
,
(
95
)
x
﹣
x=
,
(
96
)
x+50%x=6
,
(
97
)
:
x=0.3
:
12
,
(
98
)
4x+2
(
8
﹣
x
)
=26
,
(
99
)
x
﹣
=
0
,
(
10
0
)
+
x=1
,
(
101
)
x
×(
+
)
=
,
(
p>
102
)
,
p>
(
103
)
,
p>
(
104
)
p>
x
﹣
,
(
105
)
x
×
,
(
106
)
5x+35=650
,
(
107
)
720
÷
3x=80
,
(
108
)
3.6x
﹣
0.9x=8
.1
,
(
1
09
)
4
×
4
.5
﹣
3x=6
,
(
110
)
=
,
(
111
)
6
×
3
﹣
1.8X=7.2
,
(
112
)
÷
x=
,
(
113
)
x
÷
=42
,
(
114
)
x+
=
,
(
< br>115
)
7x
÷
3=8.19
,
(
116
)
12
:
0.6=x
:
,
<
/p>
(
117
)
3<
/p>
(
x+2
)
=4
(
x+1
),
(118)3x
﹣
70%x=9.2
,
(119)
6+
x=240
,
< br>(
120
)
22.5
﹣
0.4x=12.5
,
(
121
)
x
:
3.5=4
:
2
,
(
1
22
)
x
﹣
0
.8x
﹣
6=16
,
< br>
(
123
)
< br>:
=x
:
8
,
(
124
)
,
(
125
)
x
:
15=
:
,
(
126
)
x+
x=
,
(
127
)
x
×
50%
﹣
x=5
,
(
128
)
1
﹣
x=
,
(
129
)
2.5+1
x=3
,
(
130
)
3
x
﹣
2
=4
,
(
131
)
8.5
﹣
3x=2
,
(
132
)
3
÷
x=4
,
(
133
)
x
﹣
5%=17.5
4
,
(
13
4
)
:
=
:(
4
﹣
x
),<
/p>
(135) 6x+31=49
,
(136) 7x
÷
3=8.19<
/p>
,
(137) 32.8
﹣
9x=17.5
,
(138) x
﹣
0.36x=16
,
(139) 6
×
7+3x=69
,
(140) 6x+2x
﹣
56=
0
,
(141) 3x
﹣
0.45
×
4=2.7
,
(142) 5.8x
﹣
4.6x=0.96
,
(143) 8.4
÷(
9
p>
﹣
x
)
=3
,
(144) 3x
< br>÷
1.2=8
,
(
145
)
5x+28=7
1
,
(
14
6
)
8.7
﹣
1.2x=3.9
,
(
147
)
8x
﹣
2.6x=37.8
,
(
148
)
0.75x
﹣
0.95
×
4=8.5
p>
,
(
149
)
p>
54
÷
2+3x=72
,
(
150
)
8x
﹣
2.6=37.8
,
(
151
)
x
÷
=
,
(
152
)
x+30%x=26
,
(
153
)
7.8
﹣
3x=3.6
,
(
154
)
6
×
3
﹣
1.
8x=7.2
,
(
< br>155
)
10
:
x=4.5
:
0.8
,
(
156
)
:
=x
:
,
(
157
)
X
﹣
7.65=4.64
,
(
158
)
28.25
﹣
X=8.25
,
(
159
)
X
﹣(
3.6+2
.97
)
=12.42
,
(
160
)
÷
x=
,
(
161
)
14.5=5.5
,
(
162
)
x
﹣
80%
x=48
,
(
163
)
75%x
﹣
5
×
=6
,
< br>
(
164
)
< br>x
﹣
6.8=15.4
,
(
165
)
1.9x=5.7
,
(
166
)
4.3y
﹣
y=4.6
,
(
167
)
5x+2.6
=7.6
,
(168) x
﹣
1.5=12.9
,
(169)
9x+5x=8.4
,
(170)
6.8+3.2x=14.8
,
(<
/p>
171
)
5
÷<
/p>
x=
,
(
p>
172
)
﹣
x=<
/p>
,
(
173<
/p>
)
4.5
×
﹣<
/p>
3
x=1.5
,
(
174
)
(
1+25%
)
x=0.5
,
(
175
)
x
﹣
40%x=9
,
(
176
)
x
×
20%=15
.2
,
(
1
78
)
x
﹣
x
=
,
(
17
9
)
x
÷
75
%=3
,
(
180
)
4x
﹣
,
(
181
)
:
x=
:
4.5
,
(
182
)
(
x
﹣
4.5
)×
6=12.5
,
(
183
)
27
﹣
17x=13.
4
,
(
18
4
)
9.6+3x=3.24
×
5
,
(
185
)
2x+5=5x
﹣
7
,
(186) 3
(
x
﹣
2
)
=2
< br>﹣
5
(
x
﹣
2
),
(
187
)
4x
﹣
3
(
20
﹣
x
)
+4=0
,
(
188
)
﹣
=1
,
(
189
)
4x
﹣
5
×
6=12
,
(
190
)
8x
﹣
3x=15.6
,
(
191
)
30
×(
x
÷
4
)
=60
,
(
192
)
7.2
×
0.5
﹣
3x=1.2
,
(
193
)
5x
﹣
2.4
×
5=8
,
(
194
)
+
x=
×
2
,
(
195
)
5x+2.4
×
p>
15=66
,
(
196
)
3
.2x+2.8x-x=1
,
(
197
)
2
.5
×
16-8x=12
,
(
198
)
9.6-3x=6.3
,<
/p>
(
199
)
5
(
x+6
)
=75
,
(
2
00
)
x
÷
0
.7+0.9
×
3=4
,
解方程专项练习
200
题
答案:
(
1
)
x
﹣
=
p>
,
=
,
,
x=
;
(
2
)
x<
/p>
×
×
=
,
x=
,
x
×
21=
×
21
,
< br>
x=12
;
(
3
)
﹣
4x=
,
﹣
4x+4x=
+4x
,
=
+4x
,
÷
4=4x
÷
4
,
x=
.
(
4
)
8
×
2.5
﹣
2
x=13.6
20
﹣
< br>2x=13.6
,
13.6+2X=20
,
2X=6.4
,
x=3.2
;
(
5
)
0
.78
:
x=3
:
5
,
3x=
0.78
×
5
,
3x=3.9
,
x=1.3
(
6
< br>)
1
﹣
20%x=0.4
,
1
﹣
20%x+20%x=0.4+20%x
,
0.4+20%x=1
,
<
/p>
0.4+20%x
﹣
0.4=1
﹣
0.4
,
20%x=0.6
,
20%x
×
=0.6
×
,
x=3
;
(
8
)
1
÷(
x
﹣
)
=6
,
1<
/p>
÷(
x
﹣
)×(
x
﹣
)
=6<
/p>
×(
x
﹣
),<
/p>
1=6
×(
< br>x
﹣
),
6x
﹣
6
×
=1
,
6x
﹣
3=1
,
6x=4
,
6x
÷
6=4
÷
6
,
x=
(
9
)
2x
﹣
x=1.2
,
x
(
2
﹣
)
=1.2
,
x=1.2
,
x
÷
< br>=1.2
÷
,
x=1
;
(
10
)
9
×
3
﹣
1.7x=13.4
,
27
﹣
1
.7x=13.4
,
27
﹣
1.7x+1.7x=13.4+1.7x
,
13.4+1.7x=27
,
13.
4+1.7x
﹣
13.4=27
﹣
p>
13.4
,
1.7x=13.6
,
1
.7x
÷
1.7=13.6
÷
1.7
,
x=8
(
11
)
x
﹣
25%x=24
,
75%x=24
,
75
%x
÷
75%=24
÷
75%
,
x=32
;
(
12
)
x
﹣
+0.2=
,
x
﹣
0.6
=
,
x
﹣<
/p>
0.6+0.6=
+0.6
,
x=
,
x
÷
=
÷
< br>,
x=1
(
13
)
0.6x+90
%x=78
,
1.5x=78
,
1.5x
÷
1.5=78
÷
1.5
,
x=52
;
(
14
)
20%x
﹣
2.4
×
3=0.8
,
20%x
﹣
p>
7.2=0.8
,
20%x
﹣
7.2+7.2=
0.8+7.2
,
2
0%x
÷
20%=8
÷
20%
,
x=40
;
(
15
)
x
﹣
x=42
,
x=42
,
x
÷
=42
÷
,
x=252
(
16
)
0.6x+3
×
2.5=67.5
,
0.6x+7.5=67.5
,
0.6x+7.5
﹣
7.5=67.5
﹣
7.5
,
0.6x=60
,
0.6x
÷
0.6=60
÷
0.6
,
x=100
;
(
17
)
1
< br>÷(
x
﹣
0.45
)
=5
,
÷(
x
﹣
0.45
)×(
x
﹣
0.45
p>
)
=
(
x
﹣
0.45
),
x
p>
﹣
2.4=1.6
,
x
﹣
2.4+2.4=1.6+2.4
,
x=4
,
x
÷
=4
÷<
/p>
,
x=
(
18
)
x
﹣
2.25=8.25
,
x
﹣
2.25+2.25=8.25+2.25
,
x=10.5
;
(
< br>19
)
:
x=3
:
12
,
3x=
×
12
,
3x
÷
3=9
÷
3
,
x=3
(<
/p>
20
)
x+0.8=5.6
,
x+0.8
﹣
0.8=5.6
﹣
0.8
,
x=4.8
,
x
×
=4.8
×
,
x=8
.
(
21) 1.4
:
x=1
:
0.75
,
x=1.4
×
< br>0.75
,
x=1.05
(22) x
×(
2
﹣
)
=24
,
x
×
=24
,
x
×
÷
=24
÷
,
x=20
;
(23)
4x
﹣
=3
,
4x
﹣
+
=3
+
,
4x=4
,
4x
÷
4=4
÷
4
,
x=1
(
24
)
12x+7
×
0.3=20.1
,
12x+2.1=20.1
,
12x+2.1
﹣
2.1=20.1
﹣
2.1
,
1
2x
÷
12=18
÷
< br>12
,
x=1.5
;
(
25
)
x+
x=
< br>,
x=
,
x
×
,
x=
;
(
2
6
)
x
:
42
=
,
10x=42
×
,
10x
÷
10=30
÷
10
,
x=3
(
27<
/p>
)
×
0.5+
x
=
,
0.75+
x=3.75
,
0.75+
x
﹣
0.75=3.75
﹣
0.75
,
x=3
,
x
÷
=3
÷<
/p>
,
x=6
;
(
28
)
0.8
:
=0.48
:
x
,
< br>
0.8x=
×
0.48
,
0.8x=0.2
,
0.8
x
÷
0.8=0.2
÷
0.8
,
x=
(
29
)χ﹣
χ
=
,
x=
,
x
=
,
x=3
;
(
30
)
42
:
=
χ:
x=42
×
,
x
=30
,
x=50
;
<
/p>
(
31
)
5x<
/p>
﹣
0.4=75%
,
5x
﹣
0.4+0.4=75
%+0.4
,
5x
p>
÷
5=1.15
÷
5
,
x=0.23
( 32) 6x
﹣
0.9=4.5
,
6x
﹣
0.9+0.9=4.5+0.9
,
6x=5.4
,
6x
÷
6=5.4
÷
6
,
x=0.9
;
(33
)
2
(
x
﹣
3
)
=5.8
< br>,
2
(
x
﹣
3
)÷
2=5.8
÷
2
x
﹣
3=2.9
,
x
﹣
3+3=2.9
+3
,
x=5.9
;
(
34)
1.6x=6.4
,
1.6x
÷
1.6=6.4
÷
1.6
,
x=4
;
(35) 4x
﹣
3
×
9=29
,
4x
﹣
27=29
,
4x
﹣
27+27=29+27
p>
,
4x=56
,
4x
÷
4=56
÷
4
,
x=14
;
(36
< br>)
16+8x=40
,
16+8x
﹣
16=40
﹣
16
,
8x=24
,
8x
÷
8=24
÷
8
,
x=3
;
(
37
)
x
÷
1.1=3
,
x
÷
1.1
×
1.1=3
×
1.1
,
x=3.3
(
38
)
+2x=
,
+2x
=
,
2x=
,
2x
÷
2=
÷
2
,
x=
;
(
39
)
×<
/p>
3
﹣
7x=1.04
,
2.16
﹣
7x=1.04
,
2.16
﹣
7x
﹣
1.04=1.04
﹣
1.
04
,
1.12
﹣<
/p>
7x=0
,
7x
÷
7=1.12
÷
7
,
x=0.16
;
(
< br>40
)
x
﹣
1
﹣
x=2
,
x
﹣
1=2
,
x
﹣
1+1=2+1
,
x=3
,
x
=3
,
x=18
;
(
41
)
x
﹣
x=14
,
x=14
,
x
=14
,
x=18
;
p>
(
42
)
3x
p>
﹣
x=
,
x=
,
x
=
,
x=
;
(
43
)
=
,
2.4x=72
×
0.26
,
2.4x=18.72
,
2.4x
÷
2.4=18.72
÷
2.4
,
x=7.8
;
(
44
)
1.2
:
< br>=
,
x=1.2
×
5
,
x=6
,
x
=6
,
x=9
;
(
45
)
=
:
,
x=18
×
,
x=
,
x
=
,
x=12
;
(
46
)
:
=x
:
0.8
,
x=
×
0.8
,
x
=0.04
,<
/p>
x=0.2
;
(
47
)
x
=
+1
,
x
×
=
×
,
x=1
(
48
)
1
﹣
25%X+25%x=
+25%x
,
0.25x+0.25
﹣
0.25=1
﹣
0.25
,
0.25x=0.75
,
x=3
;
=
,
(
49
)
0.25x=1.25
×
1.6
,
p>
0.25x
÷
0
.25=1.25
×
1.6
÷
0.25
,
x=8
;
×
X=
,
<
/p>
(
50
)
×
p>
X
÷
=
,
x=
;
(
51
)
5
:
8=x
:
3
2
,
8x=5
×
32
,
< br>8x
÷
8=5
×
32
÷
8
,
< br>
x=20
(
52<
/p>
)
2x+3
×
0
.9=24.9
,
2x+2.7=24.9
,
2x+2.7
﹣
2.7=24.9
﹣<
/p>
2.7
,
2x
÷
2=22.2
÷
2
,
x=11.1
;
(
< br>53
)
5.3x
﹣
2.9x=
,
2.4x=
,
2.4x<
/p>
÷
2.4=
÷
2
.4
,
x=
;
(
5
4
)
×(
7
﹣
2.8x
)
=1.5
< br>,
×(
7
﹣
2.8x
)
=1.5
,
7
﹣
2.8x=2.1
,
7
﹣
2.8x+2.
8x=2.1+2.8x
,
7
﹣
2.1=2.1+2.8x
﹣
p>
2.1
,
4.9<
/p>
÷
2.8=2.8x
÷
< br>2.8
,
x=1.75
;
(
< br>55
)
x
:
0.3=
:
,
< br>x=0.3
×
,
x
=
,
x=
(
56
)
150%x
+66=99
1.5x+66=99
1.5x=33
x=22
(
57
)
x+6
﹣
p>
0.8x=16
0.2x+6=16
0.2x=10
x=50
(
58
)
x=14.4
(
59
)
0.55x=5.5
x=10
(
p>
60
)
3
÷(
p>
X
﹣
)
=1.3
3
÷(
X
﹣<
/p>
)×(
x
﹣
)<
/p>
=1.3
×(
x
﹣
),
3
=
1.3x
﹣
0.78
,
3
+0.78=1.3x
﹣
0.78+0.78
,
4.68=1.3x
,
4.68
÷
1.3=1.3x
÷
1.3
,
x=3.6
;
(
61
)
(
X+0.5
):
2
=
(
X
﹣
4
):
< br>,
×(
x
﹣
4
)
=
(
x+0.5
)×
,
< br>
x
﹣
×
4=
x+
×
0.5
< br>,
x
﹣
10
﹣
x=
x+
x
,
2.25
x
﹣
10+10=0.125+10
,
2.25x
÷
p>
2.25=10.125
÷
2.25
,
x=4.5
(
62
)
X
÷
0.05=3.528
,
X
÷
0.05
×
0.05=3.528
×
0.05
,
X=0.1764
;
(
63
)
2X
﹣
4
×
6=80
,
2X
﹣
24=
80
,
2X
﹣
24+24=80+24
,
2X=104
,
2X
÷
2=104
÷
2
,
X=52
;
(
64
)
4
×
4.5
﹣
3X=6.
38
,
18
﹣
3X=6.38
,
18
﹣
3X+3X=6.38
+3X
,
6.38+3X=18
,
6.38+
3X
﹣
6.38=18
﹣
6.38
,
3X=11.62
,
3X
÷
3=11.62
÷
3
,
X=
;
(
6
5
)
4X
﹣
7
.2=10
,
4X
< br>﹣
7.2+7.2=10+7.2
,
4X=17.2
,
4X<
/p>
÷
4=17.2
÷
4
,
X=4.3
;
(
66
)
11.5X+X=20
,<
/p>
12.5X=20
,
12.5X
p>
÷
12.5=20
÷
12.5
,
X=1.6
;
(
67
)
3.8
×
< br>12+15X=87.6
,
45.6+15X=87.6
,
45
.6+15X
﹣
45.6=87.6
﹣
45.6
,
15X=42
,
15X
÷
15=42
÷
15
,
X=2.8
(
68
)
6X+5=17
,
6x+5
﹣
5=17
﹣
5
,
6x
÷
6=12
÷
6
,
x=2
;
(
69
)
0.6
×(
2.5+X
)
=4.2
,
0.6
×(
2.5+
X
)÷
0.6=4.2
÷
0.6
,
2.5+x=7
,
2.5+x
﹣
2.5=7
﹣
2.5
,
x=4.5
;
(
70
)
:
=X
:
,
x=
×
,
x
÷
=
,
x=0.6
(
71
)
,
,
,
;
(
72
)
,
,
,
,
;
(
73<
/p>
)
,
,
,
(
74<
/p>
)
4
(
+x
p>
)
=
,
+4x=
,
+4x
﹣
=
﹣
,
4x=4
,
x=1
;
(
75
)
×
0.25+
< br>x=
,
0.2+
x=
,
0.2+
x
﹣
0.2=
﹣
0.2
,
p>
x=
,
x=
(
76
)
x
﹣<
/p>
,
,
,
x=
;
(
7
7
)
200
:
6=x
:
,
6x=200
×
,
6x
÷
6=480
÷
6
,
x=80
(
78
)
4
÷
X=<
/p>
,
4
÷
X
×
X=
X
,
X=4
,
X
÷
=4
÷<
/p>
,
X=10
;
(
79
)
8
(
x
﹣
2
)
=2
(
x+7
),
8X
﹣
16=2X+
14
,
6X
﹣
16=14
,
6X=30
,
X=5
;
(
80
)
:<
/p>
18%=
,
X
=0.18
×
6.5
,
X=1.17
,
X=7.8
﹣
2x=
,
(
81
)
﹣<
/p>
2x+2x=
+2x
,
< br>
+2x=
,
+2x
﹣
=
﹣
,
2x=
,
2x
÷
2=
÷
2
,
x=
;
x+
x=46
,
(
82
)
x
(
+
)
=4
6
,
x=46
,
x
÷
=46
÷
,
x=40
;
(
83
)
:
x=
:
,
x=
×
,