五年级解方程练习题180题及答案2
苏格拉底名言英文-儿童美食
五年级解方程练习题180题及答案
（
2）
(7)
7.5+2X=15
五年级解方程练习题180题及答
案(2)
(2)
2(X+X+0.5)=9.8
(3) 25000+x=6x
(4)
3200=440+5X+X
(5) X-0.8X=6
(6) 12x-8x=4.8
(8) 1.2x=81.6
(
7
)
x+5.6=9.4
(10) x-0.7x=3.6
(11) 91
-
x
=
1.3
(12) X+8.3=10.7
(13) 15x
=
3
1 25
(14) 3x
—
8
=
16
(15) 3x+9=27
(16) 18(x-2)=270
(17) 12x=300-4x
(18) 7x+5.3=7.4
(19)
3x
-
5=4.8
(25) 0.5x+8=43
(26) 6x-3x=18
(27) 7(6.5+x)=87.5
(
28
)
0.273
-
x=0.35
(29) 1.8x=0.972
(30) x
-
0.756=90
(31) 0.1(x+6)=3.3
X
0.4
(32)
(27.5-3.5)
-
x=4
(33) 9x-40=5
2
25
(34) x
-
5+9=21
(42
)
5.6x=33.6
(35) 48-27+5x=31
(36) 10.5+x+21=56
(
37
)
x+2x+18=78
(38) (200-x)
-
5=30
(39) (x-140)
-
70=4
(
40
)
20-9x=2
(41) x+19.8=25.8
3
25
(
43
)
9.8-x=3.8
(
44
)
75.6
-
x=12.6
(
45
)
5x+12.5=32.3
(
46
)
5(x+8)=102
(
47
)
x+3x+10=70
(
48
)
3(x+3)=50-x+3
(
49
)
5x+15=60
(
50
)
3.5-5x=2
(
51
)
0.3
X
7+4x=12.5
(
52
)
x
-
1.5-1.25=0.75
(
53
)
4x-1.3
X
6=2.6
(
54
)
6x+12.8=15.8
(
55
)
150
X
2+3x=690
(
56
)
2x-20=4
(
57
)
3x+6=18
4 25
(
58
)
2(2.8+x)=10.4
(
59
)
(x-3)
-
2=7.5
(
60
)
13.2x+9x=33.3
(
61
)
3x=x+100
(
62
)
x+4.8=7.2
(
63
)
6x+18=48
(
64
)
3(x+2.1)=10.5
(
65
)
12x-9x=8.7
(
66
)
13(x+5)=169
(
67
)
2x-97=34.2
(
68
)
3.4x-48=26.8
(
69
)
42x+25x=134
(
70
)
1.5(x+1.6)=3.6
(
71
)
2(x-3)=5.8
(
72
)
65x+7=137
(
73) 9x+4
X
2.5
=
91
(74) 4.2 x+2.5x
=
134
(75) 10.5x+6.5x=51
(76)
89x-43x=9.2
(77) 5x-45=100
(78)
1.2x-0.5x=6.3
(79) 23.4=2x
(80) 4x-x=48.6
(81) 4.5x-x=28
5 25
(82)X-5.7=2.15
(
83
)
5X-2X=18
(
84
)
3X+0.7=7
(
85) 3.5
X
2= 4.2+x
(86) 26
X
1.5= 2x+10
(87) 0.5
X
16
—
16
X
0.2=4x
(88) 13
9.25
—
X=0.403
(89)18.9
-
X=0.
3
(90) 23x=14x
+
27
(91)
x
+
14x=75
(92
)
95
—
5x
=
80
(
93
)
1.8 +6x
=
54
(
94) 6.7x
—
60.3
=
6.7
(95) 9
+
4x
=
53
(96) 2x+8=16
(97) 20x-14x=24
6 25
(98) x+7x=8
(99)
9x-3x=6
(100)
6x-8=4
(101
)
5x+x=9
(102
)
8x-8=6x
4
(103)
5
x=20
(104)
2x-6=12
(105
)
7x+7=14
(106
)
6x-6=0
(107
)
5x+6=11
(108
)
2x-8=10
(109
)
2.5x-8=4
(110
)
x- =7
3
4
(111) 3x+7=28
(112) 3x-7=26
(113)
9x-x=16
7 25
(114) 24x+x=50
(115) 1.2x-8=4
(116) 3x-8=31
(117)
6x+6=12
(118) 3x-3=3
(119) 5x-3x=4
(120) 2x+16=19
(121) 5x+8=19
(122) 14-6x=8
(123) 15+6x=27
(124) 5-8x=4
(125) 7x+8=15
(126)
9-2x=1
(127) 4+5x=9
(128) 10-x=8
(129)
8x+9=17
8 25
(130) 9+6x=15
(131) x+9x=4+7
(132) 2x+9=17
(133)
8-4x=6
(134) 6x-7=28
(135) 7x-9=20
(136) x-56=1
(137) 8-7x=1
(138)x-30=12
(139) 6x-2
仁
21
(140) 6x-3=6
(141) 9x=18
(142)
4x-18=14
(143) 5x+9=11
(144) 17-2x=11
(145) x+4+8=23
9 25
(146)
7x-12=9
(147) X-5.7=2.15
(148) 5X-2X=18
(149) 3X +0.5=5
(150) 3.5
X
2= 4 x
(151) 26
X
1.5= 2x
(152) 0.5
X
16
—
16
X
0.
仁
4x
(153) 9.26
-
X=0.402
(154) 36.9
-
X=0.3
(155) X
-
0.5=2.6
(156) 93
-
5x
=
80
(157) 180-6x
=
54
(158) 9
+
4x
=
40
(159) 0.2x
-
0.4
+
0.5
=
3.7
(160) 9.4x
-
0.4x
=
16.2
(161) 92
-
-4x
=
20
10
25
(162) 7x
-
-6=1.4
(163) 16x
+
34x=1
(164)
18x
—
14x=12
(165) 3 x
—
42
-
14=15
(166) 12
+
4x=56
(167) 22
—
14x=12
(168) X+8.3=10.7
(169) 5x
=
30
(170) x-5.6=9.4
(171) x
-
0.8=90
(172) 3x
—
8
=
16
(173)
3x+9=27
(174) 5.3+7x=7.4
(175) 3x
-
5=4.8
(176) X-0.8X=6
(177) 12x+8x=4.8
11
25
(178)
7(x-2)=49
(179) 4
X
8+2x=36
(180) (x-2)
-
3=7
(181) x
-
5+9=21
(182)(300-x)
-
5=30
(183) 91
-
x
=
1.3
(184) 41-3x=17
12
25
五年级解方程练习题180题及答案
（
2）
13
25
五年级解方程练习题180题及答案
(
2)
0.5+2x=4.9
0.5+2x-0.5=4.9-0.5
2x=4.4
2x - 2=4.4 - 2
X=2.2
(2)
2(X+X+0.5)=9.8
2x+2x+1=9.8
4x+1-1=9.8-1
4x=8.8
4x 十 4=8.8 十 4
X=2.2
(3)
25000+x=6x
25000+x-x=6x-x
5x=25000
5x
- 5=25000 - 5
X=5000
(4) 3200=440+5X+X
6
X
+440=3200
6
X
+450-450=3200-440
6x=2760
6x
— 6=2760 — 6
X=460
(5) X-0.8X=6
0.2x=6
0.2x - 0.2=6 - 0.2
X=30
(6) 12x-8x=4.8
4x=4.8
4x 十 4=4.8 十 4
X=1.2
(7)
7.5+2X=15
2x+7.5-7.5=15-7.5
2x=7.5
2x
- 2=7.5 - 2
X=3.75
(8) 1.2x=81.6
1.2x
- 1.2=81.6 - 1.2
X=68
(9) x+5.6=9.4
X+5.6-5.6=9.4-5.6
X=3.8
14
25
(10) x-0.7x=3.6
0.3x=3.6
0.3x
—
0.3=3.6
—
0.3
X=12
(11) 91
-
x
=
1.3
91
-
x x x=1.3 x x
1.3x=91
1.3x
-
1.3=91
-
1.3
X=70
(12)
X+8.3=10.7
X+8.3-8.3=10.7-8.3
X=2.4
(13) 15x
=
3
15x
-
15=3
-
15
X=0.2
(14) 3x
-
8
=
16
3x-8+8=16+8
3x=24
3x
-
3=24
-
3
X=8
(15) 3x+9=27
3x+9-9=27-9
3x=18
3x
-
3=18
-
3
3x=6
(16) 18(x-2)=270
18x-36=270
18x-36+36=270+36 18x=306
18x
-
18=306
-
18
X=17
(17) 12x=300-4x
12x+4x=300-4x+4x
16x=300
16x
-
16=300
-
16
X=18.75
(18) 7x+5.3=7.4
7x+5.3-5.3=7.4-5.3
7x=2.1
7x
-
7=2.1
-
7
X=0.3
(19) 3x
-
5=4.8
3x
-
5
X
5=4.8
x
5
15 25
3x=24
3x
-
3=24
-
3
X=8
(20) 30
-
x+25=85
30
-
x+25-25=85-25
30
-
x=60
30
-
x
X
x=60 X x
30=60x
60x
-
60=30
-
60
X=0.5
(21) 1.4
X
8-2x=6
11.2-2x+2x=6+2x
11.2=6+2x
2x+6-6=11.2-6
2x=5.2
2x 十 2=5.2 十 2
X=2.6
(22) 6x-12.8
X
3=0.06
6x-38.4=0.06
6x=38.46
6x - 6=38.46 十 6
X=6.41
(23) 410-3x=170
410-3x+3x=170+3x
170+3x=410
3x+170-170=410-170
3x=240
3x
-
3=240
-
3
X=80
(24)
3(x+0.5)=21
3x+1.5=21
3x+1.5-1.5=21-1.5
3x=19.5
3x
—
3=19.5
—
3
X=6.5
(25) 0.5x+8=43
0.5x+8-8=43-8
0.5x=35
0.5x
—
0.5=35
—
0.5
X=70
(26) 6x-3x=18
(27)
7(6.5+x)=87.5
7x+45.5=87.5
7x+45.5-45.5=87.5-45.5
3x=18
3x
-
3=18
-
3
X=6
16 25
7x=42
7x
-
7=42
-
7
X=6
(28) 0.273
-
x=0.35
x=0.273
-
0.35
X=0.78
(29)
1.8x=0.972
1.8x
-
1.8=0.972
-
1.8
X=0.54
(30) x
-
0.756=90
x
-
0.756
X
0.756=90
X
0.756
X=68.04
(31) 0.1(x+6)=3.3
X
0.4
0.1x+0.6=1.32
0.1x+0.6-0.6=1.32-0.6
0.1x=0.72
0.1x
-
0.1=0.72
-
0.1
X=7.2
(32) (27.5-3.5)
-
x=4
24
-
x=4
x=24
-
4
X=6
(33)
9x-40=5
9x-40+40=5+40
9x=45
9x 十 9=45
十 9
X=5
(34) x
-
5+9=21
x 十
5+9-9=21-9
x
-
5=12
x
—
5
X
5=12
X
5
X=60
(35)
48-27+5x=31
5x+21-21=31-21
5x=10
5x 十
5=10 十 5
X=2
(36) 10.5+x+21=56
x+31.5-31.5=56-31.5
x=24.5
(37)
x+2x+18=78
17 25
3x+18-18=78-18
3x=60
3x
—
3=60
—
3
X=20
(38) (200-x)
-
5=30
(200-x)
-
5
X
5=30
X
5
200-x=150
200-x+x=150+x
150+x=200
X+150-150=200-150
X=50
(39) (x-140)
-
70=4
(x-140)
-
70
X
70=4
X
70
X-140=280
X-140+140=280+140
X=420
(40) 20-9x=2
9x=20-2
9x=18
9x 十 9=18 十 9
X=2
(41) x+19.8=25.8
X+19.8-19.8=25.8-19.8
X=6
(42
)
5.6x=33.6
5.6x
—
5.6=33.6
—
5.6
X=6
(43)
9.8-x=3.8
9.8-x+x=3.8+x
3.8+x=9.8
X=9.8-3.8
X=6
(44) 75.6
-
x=12.6
X=75.6
-
12.6
X=6
(45) 5x+12.5=32.3
5x=19.8
5x
-
5=19.8
-
5 X=3.96
(46) 5(x+8)=102
5x+40=102 5x+40-40=102-40
5x+12.5-12.5=32.3-12.5
18 25
5x=62
5x
—
5=62
—
5
X=12.4
(47) x+3x+10=70
4x+10=70
4x+10-10=70-10
4x=60
4x 十 4=60+ 4
X=15
(48) 3(x+3)=50-x+3 3x+9=53-x 3x+x+9-9=53-x+x-9
4x=44
4x
+
4=44
+
4
X=11
(49) 5x+15=60
5x+15-15=60-15
5x=45
5x
+
5=45
+
5
X=9
(50) 3.5-5x=2
3.5-5x+5x=2+5x
5x+2=3.5
5x+2-2=3.5-2
5x=1.5
5x
+
5=1.5
+
5
X=0.3
(51) 0.3
X 7+4x=12.5
4x+2.1=12.5
4x+2.1-2.1=12.5-2.1
4x=10.4
4x
+
4=10.4
+
4
X=2.6
(52) x
+
1.5-1.25=0.75
x
+
1.5-1.25+1.25=0.75+1.25
x
+
1.5=2
x
+
1.5
X
1.5=2
X
1.5
X=3
(53) 4x-1.3 X 6=2.6
4x-1.3
X
6+1.3
X
6=2.6+1.3
X
6
4x=10.4
4x 十 4=10.4 十 4
X=2.6
(54)
6x+12.8=15.8
6x+12.8-12.8=15.8-12.8
6x=3
19 25
6x
—
6=3
—
6
X=0.5
(55) 150
X
2+3x=690
3x+300=690
3x+300-300=690-300
3x=390
3x
-
3=390
-
3
X=130
(56) 2x-20=4
2x-20+20=4+20
2x=24
2x 十 2=24 十 2
X=12
(57)
3x+6=18
3x+6-6=18-6
3x=12
3x
-
3=12
-
3
X=4
(58)
2(2.8+x)=10.4
5.6+2x=10.4
2x+5.6-5.6=10.4-5.6
2x=4.8
2x 十 2=4.8
十 2
X=2.4
(59) (x-3)
-
2=7.5
(
x-3
) -
2
X
2=7.5
X
2
X-3=15
X=18
(60) 13.2x+9x=33.3
22.2x=33.3
22.2x
-
22.2=33.3
-
22.2
X=1.5
(61) 3x=x+100
3x-x=x-x+100
2x=100
2x 十 2=100+ 2
X=50
(62) x+4.8=7.2
X=7.2-4.8
X=2.4
(63) 6x+18=48
20 25
6x+18-18=48-18
6x=30
6x +
6=30 + 6
x=5
(64) 3(x+2.1)=10.5
3x+6.3=10.5
3x=10.5-6.3
3x=4.2
3x
+ 3=4.2 + 3
X=1.4
(65) 12x-9x=8.7
3x=8.7
3x + 3=8.7 + 3
X=2.9
(66)
13(x+5)=169
13x+65=169
13x+65-65=169-65
13x=104
13x +13=104+13
X=8
(67)
2x-97=34.2
2x-97+97=34.2+97
2x=131.2
2x + 2=131.2 + 2 X=65.6
(68) 3.4x-48=26.8
3.4x-48+48=26.8+48 3.4x=74.8
3.4x +
3.4=74.8 + 3.4
X=22
(69) 42x+25x=134
67x=134
67x + 67=134 + 67
X=2
21
25
(70) 1.5(x+1.6)=3.6
1.5x+2.4=3.6
1.5x=3.6-2.4
1.5x=1.2
1.5x - 1.5=1.2 - 1.5
X=0.8
(71)
2(x-3)=5.8
2x-6=5.8
2x-6+6=5.8+6
2x=11.8
2x 十 2=11.8 十 2
X=5.9
(72)
65x+7=137
65x+7-7=137-7
65x=130
65x -
65=130 - 65
X=2
(73) 9x+4 X 2.5 = 91
9x+10=91
9x+10-10=91-10
9x=81
9x 十
9=81 十 9
X=9
(74) 4.2 x+2.5x = 134
6.7x=134
6.7x - 6.7=134 - 6.7
X=20
(75) 10.5x+6.5x=51
17x=51
17x - 17=51
- 17
X=3
(76) 89x-43x=9.2
46x=9.2
46x - 46=9.2 - 46
X=0.2
(77) 5x-45=100
5x-45+45=100+45
5x=145
5x 十 5=145 十 5
0.7x=6.3
22 25
X=29
(78) 1.2x-0.5x=6.3
0.7x
-
0.7=6.3
-
0.7
X=9
(79) 23.4=2x
2x 十
2=23.4 十 2
X=11.7
(80) 4x-x=48.6
3x=48.6
3x
—
3=48.6
—
3
X=16.2
(81) 4.5x-x=28
3.5x=28
3.5x
—
3.5=28
—
3.5
X=8
(82
)
X-5.7=2.15
X=5.7+2.15
X=7.85
(83) 5X-2X=18
3x=18
3x
-
3=18
-
3
X=6
(84) 3X+0.7=7
3x+0.7-0.7=7-0.7
3x=6.3
3x
—
3=6.3
—
3
X=2.1
(85) 3.5
X
2= 4.2+x
4.2+x=7
X=7-4.2
X=2.8
(86) 26
X
1.5= 2x+10
2x+10=39
2x+10-10=39-10
2x=29
2x 十 2=29 十 2
X=14.5
(87) 0.5
X
16
—
16
X
0.2=4x
4x=4.8
4x 十 4=4.8 十
4
X=1.2
(88) 13 9.25
—
X=0.403
X=139.25-0.403
X=138.847
(89) 18.9
-
X=0. 3
23 25
X=18.9
-
0.3
X=63
(90) 23x=14x
+ 27
23x-14x=14x-14x+27
9x=27
9x 十
9=27十 9
X=3
(91) x +14x=75
15x=75
15x - 15=75 - 15
X=5
(92 ) 95 - 5x= 80
95-5x+5x=80+5x
5x+80=95
5x+80-80=95-80
5x=15
X=3
(93) 1.8 +6x = 54
6x=54-1.8
6x=52.2
6x - 6=52.2 - 6
X=8.7
(94) 6.7x — 60.3 = 6.7
6.7x=60.3+6.7 6.7x=67
6.7x - 6.7=67 - 6.7
X=10
(95) 9 + 4x = 53
4x=53-9
4x=44
4x 十 4=44 十 4
X=11
(96)
2x+8=16
2x=16-8
2x=8
2x 十2=8十2
X=4
(97) 20x-14x=24
6x=24
6x — 6=24 — 6
X=4
(98) x+7x=8
8x=8
X=1
(99)
9x-3x=6
24 25
6x=6
X=1
(100 ) 6x-8=4
6x-8+8=4+8
6x=12
X=2
(101) 5x+x=9
6x=9
6x — 6=9 — 6
x=1.5
(102) 8x-8=6x
8x-8+8=6x+8
8x-6x=6x-6x+8 2x=8
2x 十2=8十2
X=4
4
(103) x=20
5
25 25