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
精品文档
五年级解方程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
(7)7.5+2X=15
(8)1.2x=81.6
(7)x+5.6=9.4
(10)x-0.7x=3.6
(11)91÷x=1.3
精品文档.
精品文档(28)0.273÷x=0.35
X+8.3=10.7(12)(29)1.8x=0.972
3(13)15x=(30)x÷0.756=90
(14)3x-8=16
(31)0.1(x+6)=3.3×0.4
(15)3x+9=27(32)(27.5-3.5)÷x=4
(16)18(x-2)=270
(33)9x-40=5
(17)12x=300-4x
(34)x÷5+9=21
(18)7x+5.3=7.4
(35)48-27+5x=31
5=4.8÷(19)3x(36)10.5+x+21=56
(25)0.5x+8=43
(37)x+2x+18=78
(26)6x-3x=18
(38)(200-x)÷5=30
(27)7(6.5+x)=87.5
70=4
÷(x-140)(39)精品文档.
精品文档20-9x=240)(1.5-1.25=0.75÷)x(52(41)x+19.8=25.8
6=2.64x-1.3×(53)5.6x=33.6(42)
)6x+12.8=15.8(549.8-x=3.8(43)×2+3x=690(55)15075.6(44)÷x=12.6
2x-20=456()(45)5x+12.5=32.3
3x+6=18(57)(46)5(x+8)=102
)2(2.8+x)=10.4(58
x+3x+10=7047()
2=7.559)(x-3)÷(48()3(x+3)=50-x+3
)13.2x+9x=33.3(6049)5x+15=60()(613x=x+100
()503.5-5x=2
x+4.8=7.262)(51(7+4x=12.5×0.3)6x+18=48)63(精品文档.
精品文档
(76)89x-43x=9.264)3(x+2.1)=10.5(
(77)5x-45=100(65)12x-9x=8.7
(78)1.2x-0.5x=6.3)13(x+5)=169(66
(79)23.4=2x67()2x-97=34.2
(80)4x-x=48.63.4x-48=26.8(68)
(81)4.5x-x=28)6942x+25x=134(
(82)X-5.7=2.15(70)1.5(x+1.6)=3.6
(83)5X-2X=18)(712(x-3)=5.8
(8465x+7=137))3X+0.7=772(
(85)3.5×2=4.2+x912.573)9x+4(×=
(86)26×1.5=2x+10134(74)4.2x+2.5x=
0.2=4x×(75)10.5x+6.5x=5116―16×(87)0.5精品文档.
精品文档
(99)9x-3x=6
(88)139.25-X=0.403
(1006x-8=4
(89)18.9÷X=0.3
10)5x+x=9
27(90)23x=14x10)8x-8=6x
14x=75(91)x+
x=20103)()(9295-5x80(104)2x-6=12
)(931.8+6x=54
(10)7x+7=14
(=6.760.394)6.7x1066x-6=0
+(95)94x=51075x+6=11
(96)2x+8=16
10)2x-8=10
(97)20x-14x=24
102.5x-8=4
(98)x+7x=8
x11=74精品文档.
精品文档
(123)15+6x=27(111)3x+7=28
(124)5-8x=4(112)3x-7=26
(125)7x+8=15(113)9x-x=16
(126)9-2x=1(114)24x+x=50
(127)4+5x=9(115)1.2x-8=4
(128)10-x=8(116)3x-8=31
(129)8x+9=17(117)6x+6=12
(130)9+6x=15(118)3x-3=3
(131)x+9x=4+7(119)5x-3x=4
(132)2x+9=17(120)2x+16=19
(133)8-4x=6(121)5x+8=19
(122)14-6x=8(134)6x-7=28
精品文档.
精品文档(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)3.5×2=4x
(139)6x-21=21
1.5=2x(151)26×(140)6x-3=6
×0.1=4x―(152)0.5×1616(141)9x=18
X=0.402(153)9.26-(142)4x-18=14
÷X=0.3(154)36.9
(143)5x+9=11
0.5=2.6÷(155)X(144)17-2x=11
80=-(156)935x(145)x+4+8=23
54=(157)180-6x精品文档.
精品文档
(169)5x=30=(158)9+4x40
(170)x-5.6=9.4-0.4+0.5=3.7(159)0.2x
(171)x÷0.8=90=(160)9.4x-0.4x16.2
(172)3x-20=8=16(161)92-4x
(173)3x+9=27(162)7x6=1.4÷
(174)5.3+7x=7.4+(163)16x34x=1
(175)3x(164)18x-14x=12÷5=4.8
(176)X-0.8X=614=1542(165)3x-÷(177)12x+8x=4.8
(166)12+4x=56
(178)7(x-2)=49
(179)414x=12-(167)22×8+2x=36
3=7
÷(168)X+8.3=10.7(180)(x-2)精品文档.
精品文档(183)91÷x=1.3
(181)x÷5+9=21
(184)41-3x=17
÷5=30(182)(300-x)
题答案五年级解方程1803200=440+5X+X(4)6x+440=3200(0.5+x)+x=9.8)÷2(16x+450-450=3200-4400.5+2x=4.9
6x=27600.5+2x-0.5=4.9-0.5
6
÷÷2x=4.46=27606xX=460
2x÷2=4.4÷2
)X-0.8X=6X=2.2(50.2x=6
(2)2(X+X+0.5)=9.8
0.2÷÷0.2x0.2=62x+2x+1=9.8
X=30
4x+1-1=9.8-1
(6)12x-8x=4.84x=8.8
4x=4.844=8.84x÷÷44=4.8÷X=2.2
4x÷X=1.23()25000+x=6x
25000+x-x=6x-x(7)7.5+2X=15
2x+7.5-7.5=15-7.55x=25000
2x=7.55÷5=25000÷5x2
÷2=7.5X=5000÷2x精品文档.
精品文档16x÷16=300X=3.75÷16
X=18.75(8)1.2x=81.6
(18)7x+5.3=7.41.2÷1.2=81.6÷1.2x7x+5.3-5.3=7.4-5.3X=68
7x=2.1(9)x+5.6=9.4
7x÷7=2.1÷7X+5.6-5.6=9.4-5.6
X=0.3X=3.8
(19)3x÷5=4.8
(10)x-0.7x=3.63x÷5×5=4.8×5
3x=240.3x=3.6
3x÷3=24÷30.3÷0.3x÷0.3=3.6X=8X=12
(20)30÷x+25=851.3(11)91÷x=30÷x+25-25=85-25xx=1.3×x91÷×30÷x=601.3x=91
30÷x×x=60×x1.31.3=911.3x÷÷30=60xX=70
60x÷60=30÷60(12)X+8.3=10.7
X=0.5X+8.3-8.3=10.7-8.3
(21)1.4×8-2x=6X=2.4
11.2-2x+2x=6+2x(13)15x=3
11.2=6+2x15÷15=315x÷2x+6-6=11.2-6
X=0.2
2x=5.2
2x÷2=5.2÷28(14)3x-=16
X=2.6
3x-8+8=16+8
(22)6x-12.8×3=0.063x=24
6x-38.4=0.0633=24÷÷3x6x=38.46X=8
6x÷6=38.46÷6(15)3x+9=27X=6.41
3x+9-9=27-9
(23)410-3x=1703x=18
410-3x+3x=170+3x33x3=18÷÷170+3x=4103x=6
3x+170-170=410-170(16)18(x-2)=270
3x=24018x-36=270
3x÷3=240÷318x-36+36=270+36
X=8018x=306
(24)3(x+0.5)=2118÷18=306÷18x3x+1.5=21X=17
3x+1.5-1.5=21-1.5(17)12x=300-4x
3x=19.512x+4x=300-4x+4x
3
÷3=19.5÷3x16x=300
精品文档.
精品文档(34)x÷5+9=21X=6.5
x÷(25)0.5x+8=435+9-9=21-9
x÷0.5x+8-8=43-85=12
x÷0.5x=355×5=12×5
X=60÷0.50.5x÷0.5=35(35)48-27+5x=31X=70
5x+21-21=31-21(26)6x-3x=18
5x=103x=18
5x÷5=10÷53x÷3=18÷3
X=2X=6
(36)10.5+x+21=56(27)7(6.5+x)=87.5
x+31.5-31.5=56-31.57x+45.5=87.5
x=24.57x+45.5-45.5=87.5-45.5
(37)x+2x+18=787x=42
3x+18-18=78-187÷7x7=42÷3x=60X=6
3x÷3=60÷3
X=20x=0.35(28)0.273÷
(38)(200-x)÷0.35x=0.273÷5=30
(200-x)÷5X=0.78×5=30×5
200-x=150
200-x+x=150+x(29)1.8x=0.972
150+x=200÷1.8x÷1.8=0.9721.8
X+150-150=200-150X=0.54
X=50
(30)x÷0.756=90
(39)(x-140)0.756=900.756x÷××÷70=40.756
(x-140)÷70×70=4X=68.04×70
X-140=280(31)0.1(x+6)=3.3×0.4
X-140+140=280+1400.1x+0.6=1.32
X=4200.1x+0.6-0.6=1.32-0.6
(40)0.1x=0.7220-9x=2
9x=20-20.1=0.720.1x÷0.1÷9x=18X=7.2
9x÷x=4÷(32)(27.5-3.5)9=18÷9
X=2÷24x=4
(41)x+19.8=25.8x=244÷X+19.8-19.8=25.8-19.8X=6
X=6(33)9x-40=5
9x-40+40=5+40
(42)5.6x=33.69x=45
5.6x÷9÷9=45÷9x5.6=33.6÷5.6
X=6
X=5
精品文档.
精品文档5x=1.5
5x÷5=1.5÷5(43)9.8-x=3.8
X=0.39.8-x+x=3.8+x
(51)0.3×7+4x=12.53.8+x=9.8
4x+2.1=12.5X=9.8-3.8
4x+2.1-2.1=12.5-2.1X=6
4x=10.4÷x=12.644()75.64x÷12.6X=75.6÷4=10.4÷4
X=2.6X=6
(52)x÷1.5-1.25=0.75
x(45)5x+12.5=32.3÷1.5-1.25+1.25=0.75+1.25
x÷5x+12.5-12.5=32.3-12.51.5=2
x5x=19.8÷1.5×1.5=2×1.5
X=355=19.85x÷÷(53)4x-1.3X=3.96×6=2.6
4x-1.3×6+1.3×6=2.6+1.3×65(x+8)=102(46)
4x=10.45x+40=102
4x÷4=10.4÷45x+40-40=102-40
X=2.65x=62
(÷÷5x5=62554)6x+12.8=15.8
6x+12.8-12.8=15.8-12.8X=12.4
6x=3x+3x+10=7047()
6x÷4x+10=706=3÷6
X=0.54x+10-10=70-10
4x=60
(55)150÷÷4x4=604×2+3x=690
3x+300=690X=15
3x+300-300=690-3003(x+3)=50-x+3)(483x=3903x+9=53-x
3x÷3=390÷3x+x+9-9=53-x+x-93
X=1304x=44
4=444x÷(56)4÷2x-20=4
2x-20+20=4+20X=11
2x=24
2x5x+15=60)÷2=24÷249(X=125x+15-15=60-15
5x=45
(57)55=45÷5x÷3x+6=18
3x+6-6=18-6X=9
3x=123.5-5x=2)50(
3x÷3=123.5-5x+5x=2+5x÷3
X=4
5x+2=3.5
2(2.8+x)=10.4)5x+2-2=3.5-258(
精品文档.
精品文档(67)5.6+2x=10.42x-97=34.2
2x-97+97=34.2+972x+5.6-5.6=10.4-5.6
2x=131.22x=4.8
2x÷22=131.2÷22x÷2=4.8÷X=65.6X=2.4
2=7.5)(x-3)÷(59(68)3.4x-48=26.8)÷2×2=7.5×2(x-33.4x-48+48=26.8+48X-3=15
3.4x=74.8X=18
3.4x÷3.4=74.8÷3.4
X=22)13.2x+9x=33.3(60(6922.2x=33.3)42x+25x=134
67x=13422.222.2=33.322.2x÷÷67xX=1.5÷67=134÷67
X=2(61)3x=x+100
(70)1.5(x+1.6)=3.63x-x=x-x+100
1.5x+2.4=3.62x=100
1.5x=3.6-2.4÷22x÷2=1001.5x=1.2X=50
1.5x÷1.5=1.2÷)(62x+4.8=7.21.5
X=0.8X=7.2-4.8
(71X=2.4)2(x-3)=5.8
2x-6=5.8)(636x+18=48
2x-6+6=5.8+66x+18-18=48-18
2x=11.86x=30
2x÷2=11.8÷÷÷6x6=3062
X=5.9x=5
(72)65x+7=1373(x+2.1)=10.564()
65x+7-7=137-73x+6.3=10.5
65x=1303x=10.5-6.3
65x÷65=130÷3x=4.265
X=2÷÷3x3=4.23
(73)9x+4×2.5X=1.4=91
9x+10=9112x-9x=8.7)65(9x+10-10=91-103x=8.7
9x=81÷3=8.7÷3x3
9x÷9=81X=2.9÷9
X=913(x+5)=16966()13x+65=169
(74)4.2x+2.5x13x+65-65=169-65=134
6.7x=13413x=104
6.7x÷13÷13=10413x÷6.7=134÷6.7
X=20
X=8
精品文档.
精品文档X=7-4.2(75)10.5x+6.5x=51
X=2.817x=51
(86)26×1.5=2x+1017x÷17=51÷17
2x+10=39X=3
2x+10-10=39-10(76)89x-43x=9.2
2x=2946x=9.2
2x÷2=2946x÷46=9.2÷46÷2
X=14.5
X=0.2
(87)0.5×16―16×0.2=4x
4x=4.8(77)5x-45=100
4x÷4=4.8÷45x-45+45=100+45
X=1.25x=145
(88)139.25-X=0.4035=1455x÷÷5
X=139.25-0.403X=29
X=138.847(78)1.2x-0.5x=6.3
(89)18.9÷X=0.30.7x=6.3
X=18.90.7÷0.3÷0.7x0.7=6.3÷X=63X=9
(90)23x=14x+27(79)23.4=2x
23x-14x=14x-14x+272=23.4÷2÷2x9x=27X=11.7
9x(80)4x-x=48.6÷9=27÷9
X=33x=48.6
(91)x+14x=7533x÷3=48.6÷
15x=75X=16.2
15x÷(81)4.5x-x=2815=75÷15
X=53.5x=28
(92)95-5x=80÷÷3.5x3.5=283.5
95-5x+5x=80+5xX=8
5x+80=95)(82X-5.7=2.15
5x+80-80=95-80X=5.7+2.15
5x=15X=7.85
X=3)(835X-2X=18
(93)1.8+6x=3x=1854
6x=54-1.8÷33=18÷3x6x=52.2X=6
6x÷6=52.2÷63X+0.7=7)(84X=8.73x+0.7-0.7=7-0.7
(94)6.7x-60.3=3x=6.36.7
6.7x=60.3+6.7÷33=6.3÷3x6.7x=67X=2.1
6.7x2=4.2+x×85)3.5(÷6.7=67÷6.7
X=10
4.2+x=7
精品文档.
精品文档
(107x+7=145(95)47x+7-7=14-74x=53-9
7x=74x=44
77=4744=4X=1X=11
106x-6=0(96)2x+8=16
6x-6+6=0+62x=16-8
6x=62x=8
X=12=2210X=45x+6=11
5x+6-6=11-6(97)20x-14x=24
5x=56x=24
X=1666=2102x-8=10X=4
2x-8+8=10+8(98)x+7x=8
2x=188x=8
X=9X=1
(99)9x-3x=6102.5x-8=4
2.5x-8+8=4+86x=6
2.5x=12X=1
2.52.5=1(106x-8=42.5
X=4.8
6x-8+8=4+8
6x=12=7x11X=2
5x+x=910X=76x=9
X=7.75666=113x+7=28x=1.5
3x+7-7=28-7108x-8=6x
3x=218x-8+8=6x+8
33=238x-6x=6x-6x+8
X=72x=8
(112)3x-7=26222=3x-7+7=26+7X=4
3x=33103)x=2033=33X=11=2(113)9x-x=16
8x=16X=25
8(104)2x-6=128=1
X=22x-6+6=12+6
(114)24x+x=502x=18
25x=50
22=1225
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