五年级解方程练习题180题有答案.docx
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五年级解方程练习题180题有答案.docx
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五年级解方程练习题180题有答案
(1)(0.5+x)+x=9.8-2
(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
⑺7.5+2X=15
(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
五年级解方程180题有答案
(13)15x=3
(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
(42)
5.6x=33.6
(30)
x-0.756=90
(43)
9.8-x=3.8
(31)
0.1(x+6)=3.3X0.4
(44)
75.6-x=12.6
(32)
(27.5-3.5)-x=4
(45)
5x+12.5=32.3
(33)
9x-40=5
(46)
5(x+8)=102
(34)
x宁5+9=21
(47)
x+3x+10=70
(35)
48-27+5x=31
(48)
3(x+3)=50-x+3
(36)
10.5+x+21=56
(49)
5x+15=60
(37)x+2x+18=78
(50)
3.5-5x=2
(38)(200-x)-5=30
(51)
0.3X7+4x=12.5
(39)
(x-140)-70=4
(40)20-9x=2
(52)
x-1.5-1.25=0.75
(41)
x+19.8=25.8
(53)
4x-1.3X6=2.6
(54)
(55)
(56)
(57)
(58)
(59)
(60)
(61)
(62)
(63)
(64)
(65)
6x+12.8=15.8
150X2+3x=690
2x-20=4
3x+6=18
2(2.8+x)=10.4(x-3)-2=7.513.2x+9x=33.33x=x+100x+4.8=7.2
6x+18=48
3(x+2.1)=10.5
(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+4X2.5=91
(74)4.2x+2.5x=134
(75)10.5x+6.5x=51
(76)89x-43x=9.2
(77)5x-45=100
12x-9x=8.7
(78)1.2x-0.5x=6.3
(91)x+14x=75
(79)23.4=2x
(80)4x-x=48.6
(81)4.5x-x=28
(82)X-5.7=2.15
(83)5X-2X=18
(84)3X+0.7=7
(85)3.5X2=4.2+x
(86)26X1.5=2x+10
(87)0.5X16—16X0.2=4x
(88)139.25—X=0.403
(89)18.9-X=0.3
(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
(98)x+7x=8
(99)9x-3x=6
(100)6x-8=4
(101)5x+x=9
(90)23x=14x+27
(102)8x-8=6x
4
(103)4x=20
5
(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
3
(110)x-=7
4
(111)3x+7=28
(112)3x-7=26
(113)9x-x=16
(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
(140)6x-3=6
(128)10-x=8
(141)9x=18
(129)8x+9=17
(142)4x-18=14
(130)9+6x=15
(143)5x+9=11
(131)x+9x=4+7
(144)17-2x=11
(132)2x+9=17
(145)x+4+8=23
(133)8-4x=6
(134)6x-7=28
(146)7x-12=9
(135)7x-9=20
(147)X-5.7=2.15
(136)x-56=1
(148)5X-2X=18
(137)8-7x=1
(149)3X+0.5=5
(138)x-30=12
(150)3.5X2=4x
(139)6x-21=21
(151)26X1.5=2x
(164)18x-14x=12
(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
(162)7x-
-6=1.4
(163)16x
+34x=1
(152)0.5X16—16X0.仁4x
(165)3x-42-14=15
(166)12+4x=56
(167)22-14x=12
(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
(168)X+8.3=10.7
(176)X-0.8X=6
(181)x-5+9=21
(177)12x+8x=4.8
(182)(300-x)-5=30
(178)7(x-2)=49
(183)91-x=1.3
(179)4X8+2x=36
(180)(x-2)-3=7
(184)41-3x=17
五年级解方程180题答案
(1)(0.5+x)+x=9.8-2
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)=9.82x+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
6x+440=3200
6x+450-450=3200-440
6x=2760
6x—6=2760*6
X=460
(5)X-0.8X=6
3x=6
0.2x=6
(16)18(x-2)=270
0.2x-0.2=6-0.2
18x-36=270
X=30
18x-36+36=270+36
(6)12x-8x=4.8
18x=306
4x=4.8
18x-18=306-18
4x十4=4.8十4
X=17
X=1.2
(17)12x=300-4x
(7)7.5+2X=15
12x+4x=300-4x+4x
2x+7.5-7.5=15-7.5
16x=300
2x=7.5
16x-16=300-16
2x-2=7.5-2
X=18.75
X=3.75
(18)7x+5.3=7.4
(8)1.2x=81.6
7x+5.3-5.3=7.4-5.3
1.2x-1.2=81.6-1.2
7x=2.1
X=68
7x-7=2.1-7
(9)x+5.6=9.4
X=0.3
X+5.6-5.6=9.4-5.6
(19)3x-5=4.8
3x-5X5=4.8x5
X=3.8
3x=24
(10)x-0.7x=3.6
3x-3=24-3
0.3x=3.6
X=8
0.3x—0.3=3.6—0.3
(20)30-x+25=85
X=12
30-x+25-25=85-25
(11)91-x=1.3
30-x=60
91-xxx=1.3xx
30-xxx=60xx
1.3x=91
30=60x
1.3x-1.3=91-1.3
60x-60=30-60
X=70
X=0.5
(12)X+8.3=10.7
(21)1.4x8-2x=6
X+8.3-8.3=10.7-8.3
11.2-2x+2x=6+2x
X=2.4
11.2=6+2x
(13)15x=3
2x+6-6=11.2-6
15x-15=3-15
2x=5.2
X=0.2
2x十2=5.2十2
X=2.6
(14)3x-8=16
(22)6x-12.8x3=0.06
3x-8+8=16+8
6x-38.4=0.06
3x=24
6x=38.46
3x-3=24-3
6x-6=38.46十6
X=8
X=6.41
(15)3x+9=27
(23)410-3x=170
3x+9-9=27-9
410-3x+3x=170+3x
3x=18
170+3x=410
3x-3=18-3
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
3x=18
3x-3=18-3
X=6
(27)7(6.5+x)=87.5
7x+45.5=87.5
7x+45.5-45.5=87.5-45.5
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-0.756X0.756=90X0.756
X=68.04
(31)0.1(x+6)=3.3X0.4
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=45十9X=5
(34)x-5+9=21
x十5+9-9=21-9
x-5=12
x—5X5=12X5
X=60
(35)48-27+5x=31
5x+21-2仁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
3x+18-18=78-18
3x=60
3x—3=60*3
X=20
(38)(200-x)*5=30
(200-x)*5X5=30X5
200-x=150200-x+x=150+x
150+x=200
X+150-150=200-150
X=50
(39)(x-140)*70=4
(x-140)*70X70=4X70
X-140=280
X-140+140=280+140
X=420
(40)20-9x=2
9x=20-2
9x=18
9x*9=18*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+12.5-12.5=32.3-12.5
5x=19.8
5x-5=19.8-5X=3.96
(46)5(x+8)=102
5x+40=1025x+40-40=102-40
5x=62
5x—5=62—5
X=12.4
(47)x+3x+10=70
4x+10=704x+10-10=70-10
4x=60
4x十4=60+4X=15
(48)3(x+3)=50-x+33x+9=53-x3x+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
5x+2=3.5
5x+2-2=3.5-2
5x=1.5
5x+5=1.5+5X=0.3
(51)0.3X7+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+1.5X1.5=2X1.5
X=3
(53)4x-1.3X6=2.6
4x-1.3X6+1.3X6=2.6+1.3X6
4x=10.4
4x+4=10.4+4
X=2.6
(54)6x+12.8=15.8
6x+12.8-12.8=15.8-12.8
6x=3
6x+6=3+6
X=0.5
(55)150X2+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+2=24+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=131.2
2x+5.6-5.6=10.4-5.6
2x+2=131.2+2
2x=4.8
X=65.6
2x十2=4.8十2
X=2.4
(68)3.4x-48=26.8
(59)(x-3)-2=7.5
3.4x-48+48=26.8+48
(x-3)-2X2=7.5X2
3.4x=74.8
X-3=15
3.4x+3.4=74.8+3.4
X=18
X=22
(69)42x+25x=134
(60)13.2x+9x=33.3
67x=134
22.2x=33.3
67x+67=134+67
22.2x-22.2=33.3-22.2
X=2
X=1.5
(70)1.5(x+1.6)=3.6
(61)3x=x+100
1.5x+2.4=3.6
3x-x=x-x+100
1.5x=3.6-2.4
2x=100
1.5x=1.2
2x十2=100+2
1.5x+1.5=1.2+1.5
X=50
X=0.8
(62)x+4.8=7.2
(71)2(x-3)=5.8
X=7.2-4.8
2x-6=5.8
X=2.4
2x-6+6=5.8+6
(63)6x+18=48
2x=11.8
6x+18-18=48-18
2x+2=11.8+2
6x=30
X=5.9
6x+6=30+6
(72)65x+7=137
x=5
65x+7-7=137-7
(64)3(x+2.1)=10.5
65x=130
3x+6.3=10.5
65x+65=130+65
3x=10.5-6.3
X=2
3x=4.2
(73)9x+4X2.5=91
3x+3=4.2+3
9x+10=91
X=1.4
9x+10-10=91-10
(65)12x-9x=8.7
9x=81
3x=8.7
9x+9=81+9
3x+3=8.7+3
X=9
X=2.9
(66)13(x+5)=169
(74)4.2x+2.5x=134
13x+65=169
6.7x=134
13x+65-65=169-65
6.7x+6.7=134+6.7
13x=104
X=20
13x+13=104+13
(75)10.5x+6.5x=51
X=8
17x=51
(67)2x-97=34.2
17x+17=51+17
2x-97+97=34.2+97
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
X=29
(78)1.2x-0.5x=6.3
0.7x=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)3.5X2=4.2+x
4.2+x=7
X=7-4.2
X=2.8
(86)26X1.5=2x+10
2x+10=39
2x+10-10=39-10
2x=29
2x十2=29十2
X=14.5
(87)0.5X16—16X0.2=4x
4x=4.8
4x十4=4.8十4
X=1.2
(88)139.25—X=0.403
X=139.25-0.403X=138.847
(89)18.9-X=0.3
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十2=8十2
5x+6-6=11-6
X=4
5x=5
(97)20x-14x=24
X=1
6x=24
(108)2x-8=10
6x—6=24—6
2x-8+8=10+8
X=4
2x=18
(98)x+7x=8
X=9
8x=8
(109)2.5x-8=4
X=1
2.5x-8+8=4+8
(99)9x-3x=6
2.5x=12
6x=6
2.5x-2.5=12-2.5
X=1
X=4.8
(100)6x-8=4
3
(110)x--=7
6x-8+8=4+8
4
6x=12
333
X-_+_=7+_
X=2
444
(101)5x+x=9
X=7.75
6x=9
(111)3x+7=28
6x—6=9—6
3x+7-7=28-7
x=1.5
3x=21
(102)8x-8=6x
3x-3=21-3
8x-8+8=6x+8
X=7
8x-6x=6x-6x+8
(112)3x-7=26
2x=8
3x-7+7=26+7
2x十2=8十2
3x=33
X=4
3x—3=33—3
4
(103)x=20
X=11
5
(113)9x-x=16
8x=16
555
8x十8=16十8
X=25
X=
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