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1、五年級解方程 180 題有答案(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(12)X+8.3=10.7(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+
2、x)=87.51(28)0.273-x=0.35(29)1.8x=0.972(30)x-0.756=90(31)0.1(x+6)=3.3X0.4(32)(27.5-3.5)-x=4(33)9x-40=5(34)x-5+9=21(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(42)5.6x=33.6(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=7
3、0(48)3(x+3)=50-x+3(49)5x+15=60(50)3.5-5x=2(51)0.3X7+4x=12.52(52)x-1.5-1.25=0.75(53)4x-1.3X6=2.6(54)6x+12.8=15.8(55)150X2+3x=690(56)2x-20=4(57)3x+6=18(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
4、.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)4.2 x+2.5x=134(75)10.5x+6.5x=513(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(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)0.5X1616X0.2=4x(88)13 9
5、.25X=0.403(89)18.9-X=0.3(90)23x=14x+27(91)x+14x=75(92)955x=80(93)1.8+6x=54(94)6.7x60.3=6.7(95)9+4x=53(96)2x+8=16(97)20 x-14x=24(98)x+7x=84(99)9x-3x=6(100)6x-8=4(101)5x+x=9(102)8x-8=6x(103)45x=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-3=734(111)3x+7=28(112)3x-7=
6、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=85(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(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
7、(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=236(146)7x-12=9(147)X-5.7=2.15(148)5X-2X=18(149)3X+0.5=5(150)3.5X2=4 x(151)26X1.5=2x(152)0.5X1616X0.仁4x(153)9.26X=0.402(154)36.9-X=0.3(155)X-0.5=2.6(156)935x=80(157)180-6x=54(158)9+4x=40(159)0.2x0.4+0.5=3.7
8、(160)9.4x0.4x=16.2(161)924x=20(162)7x-6=1.4(163)16x+34x=1(164)18x14x=12(165)3 x42-14=15(166)12+4x=56(167)2214x=12(168)X+8.3=10.77(169)5x=30(170)x-5.6=9.4(171)x-0.8=90(172)3x8=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(178)7(x-2)=49(179)4X8+2x=36(180)(x-2)-3=7(181)x-5+9=21
9、(182)(300-x)-5=30(183)91-x=1.3(184)41-3x=178五年級解方程 180 題答案(1)(0.5+x)+x=9.8-20.5+2x=4.90.5+2x-0.5=4.9-0.52x=4.42x-2=4.4-2X=2.2(2)2(X+X+0.5)=9.82x+2x+1=9.84x+1-1=9.8-14x=8.84x十4=8.8十4X=2.2(3)25000+x=6x25000+x-x=6x-x5x=250005x-5=25000-5X=5000(4)3200=440+5X+X6X+440=32006x+450-450=3200-4406x=27606x6=2760
10、6X=460(5)X-0.8X=60.2x=60.2x-0.2=6-0.2X=30(6)12x-8x=4.84x=4.84x十4=4.8十4X=1.2(7)7.5+2X=152x+7.5-7.5=15-7.52x=7.52x-2=7.5-2X=3.75(8)1.2x=81.61.2x-1.2=81.6-1.2X=68(9)x+5.6=9.4X+5.6-5.6=9.4-5.6X=3.8(10)x-0.7x=3.60.3x=3.60.3x0.3=3.60.3X=12(11)91-x=1.391-x x x=1.3 x x1.3x=911.3x-1.3=91-1.3X=70(12)X+8.3=10.
11、7X+8.3-8.3=10.7-8.3X=2.4(13)15x=315x-15=3-15X=0.2(14)3x-8=163x-8+8=16+83x=243x-3=24-3X=8(15)3x+9=273x+9-9=27-93x=183x-3=18-33x=6(16)18(x-2)=27018x-36=27018X-36+36=270+3618x=30618x-18=306-18X=17(17)12x=300-4x12x+4x=300-4x+4x16x=30016x-16=300-16X=18.75(18)7x+5.3=7.497x+5.3-5.3=7.4-5.37x7x=2.11 0X=0.3(
12、19)3x-5=4.83x-5X5=4.8 X 53x=243x-3=24-3X=8(20)30-x+25=8530-x+25-25=85-2530-x=6030-xXx=60Xx30=60 x60 x-60=30-60X=0.5(21)1.4X8-2x=611.2-2x+2x=6+2x11.2=6+2x2x+6-6=11.2-62x=5.22x十2=5.2十2X=2.6(22)6x-12.8X3=0.066x-38.4=0.066x=38.466x-6=38.46十6X=6.41(23)410-3x=170410-3x+3x=170+3x170+3x=4103x+170-170=410-17
13、03x=2403x-3=240-3X=80(24)3(x+0.5)=213x+1.5=213x+1.5-1.5=21-1.53x=19.53x3=19.53X=6.5(25)0.5x+8=430.5x+8-8=43-80.5x=350.5x0.5=350.5X=70(26)6x-3x=183x=183x-3=18-3X=6(27)7(6.5+x)=87.57x+45.5=87.57x+45.5-45.5=87.5-45.57x=427x-7=42-7X=6(28)0.273-x=0.35x=0.2730.35X=0.78(29)1.8x=0.9721.8x-1.8=0.972-1.8X=0.5
14、4(30)x-0.756=90 x-0.756X0.756=90X0.756X=68.04(31)0.1(x+6)=3.3X0.40.1x+0.6=1.320.1x+0.6-0.6=1.32-0.60.1x=0.720.1x-0.1=0.72-0.1X=7.2(32)(27.5-3.5)-x=424-x=4x=24十4X=6(33)9x-40=59x-40+40=5+409x=459x十9=45十9X=5(34)x-5+9=21x十5+9-9=21-9x-5=12x5X5=12X5X=60(35)48-27+5x=315x+21-2仁31-215x=101 15x-5=10-5X=2(36)1
15、0.5+x+21=56x+31.5-31.5=56-31.5x=24.5(37)x+2x+18=783x+18-18=78-183x=603x3=603X=20(38)(200-x)-5=30(200-x)-5X5=30X5200-x=150200-x+x=150+x150+x=200X+150-150=200-150X=50(39)(x-140)-70=4(x-140)-70X70=4X70X-140=280X-140+140=280+140X=420(40)20-9x=29x=20-29x=189x十9=18十9X=2(41)x+19.8=25.8X+19.8-19.8=25.8-19.8
16、X=6(42)5.6x=33.65.6x5.6=33.65.6X=6(43)9.8-x=3.89.8-x+x=3.8+x3.8+x=9.8X=9.8-3.8X=6(44)75.6-x=12.6X=75.6-12.6X=6(45)5x+12.5=32.35x+12.5-12.5=32.3-12.55x=19.85x-5=19.8-5X=3.96(46)5(x+8)=1025x+40=1025x+40-40=102-405x=625x5=625X=12.4(47)x+3x+10=704x+10=704x+10-10=70-104x=604x十4=60十4X=15(48)3(x+3)=50-x+33
17、x+9=53-x3x+x+9-9=53-x+x-94x=444x十4=44十4X=11(49)5x+15=605x+15-15=60-155x=455x十5=455X=9(50)3.5-5x=23.5-5x+5x=2+5x5x+2=3.55x+2-2=3.5-25x=1.55x十5=1.5十5X=0.3(51)0.3X7+4x=12.54x+2.1=12.54x+2.1-2.1=12.5-2.14x=10.44x十4=10.4十4X=2.621(52)x-1.5-1.25=0.751 3x-1.5-1.25+1.25=0.75+1.25x-1.5=2x-1.5 X 1.5=2 X 1.5X=3
18、(53)4x-1.3X6=2.64x-1.3X6+1.3X6=2.6+1.3X64x=10.44x十4=10.4十4X=2.6(54)6x+12.8=15.86x+12.8-12.8=15.8-12.86x=36x6=36X=0.5(55)150X2+3x=6903x+300=6903x+300-300=690-3003x=3903x-3=390-3X=130(56)2x-20=42x-20+20=4+202x=242x十2=24十2X=12(57)3x+6=183x+6-6=18-63x=123x-3=12-3X=4(58)2(2.8+x)=10.45.6+2x=10.42x+5.6-5.6
19、=10.4-5.62x=4.82x十2=4.8十2X=2.4(59)(x-3)-2=7.5(x-3)-2X2=7.5X2X-3=15X=18(60)13.2x+9x=33.322.2x=33.322.2x-22.2=33.3-22.2X=1.5(61)3x=x+1003x-x=x-x+1002x=1002x十2=100十2X=50(62)x+4.8=7.2X=7.2-4.8X=2.4(63)6x+18=486x+18-18=48-186x=306x6=30*6x=5(64)3(x+2.1)=10.53x+6.3=10.53x=10.5-6.33x=4.23x*3=4.2*3X=1.4(65)1
20、2x-9x=8.73x=8.73x*3=8.7*3X=2.9(66)13(x+5)=16913x+65=16913x+65-65=169-6513x=10413x*13=104*13X=8(67)2x-97=34.22x-97+97=34.2+972x=131.22x*2=131.2*2X=65.6(68)3.4x-48=26.83.4x-48+48=26.8+483.4x=74.83.4x*3.4=74.8*3.4X=22(69)42x+25x=1344167x=13467x-67=134-67X=2(70)1.5(x+1.6)=3.61.5x+2.4=3.61.5x=3.6-2.41.5x
21、=1.21.5x-1.5=1.2-1.5X=0.8(71)2(x-3)=5.82x-6=5.82x-6+6=5.8+62x=11.82x十2=11.8十2X=5.9(72)65x+7=13765x+7-7=137-765x=13065x-65=130-65X=2(73)9x+4 X 2.5=919x+10=919x+10-10=91-109x=819x十9=81十9X=9=1346.7x=1346.7x-6.7=134-6.7X=2017x=5117x-17=51-17X=346x=9.246x-46=9.2-46X=0.25x-45+45=100+455x=1455x十5=145十5X=29
22、(78)1.2x-0.5x=6.30.7x=6.30.7x-0.7=6.3-0.7X=9(79)23.4=2x2x十2=23.4十2X=11.7(80)4x-x=48.63x=48.63x3=48.63X=16.2(81)4.5x-x=283.5x=283.5x3.5=283.5X=8(82)X-5.7=2.15X=5.7+2.15X=7.85(83)5X-2X=183x=183x-3=18-3X=6(84)3X+0.7=73x+0.7-0.7=7-0.73x=6.33x3=6.33X=2.1(85)3.5X2=4.2+x4.2+x=7X=7-4.2X=2.8(86)26X1.5=2x+102
23、x+10=392x+10-10=39-102x=292x十2=29十2X=14.5(87)0.5X1616X0.2=4x4x=4.84x十4=4.8十4X=1.2(88)13 9.25X=0.403X=139.25-0.4031 5(74)4.2 x+2.5x(75)10.5x+6.5x=51(76)89x-43x=9.2(77)5x-45=100X=138.847(89)18.9-X=0.3X=18.9-0.3X=63(90)23x=14x+2723x-14x=14x-14x+279x=279x十9=27十9X=3(91)x+14x=7515x=7515x-15=75-15X=5(92)95
24、-5x=8095-5x+5x=80+5x5x+80=955x+80-80=95-805x=15X=3(93)1.8+6x=546x=54-1.86x=52.26x-6=52.2-6X=8.7(94)6.7x60.3=6.76.7x=60.3+6.7 6.7x=676.7x-6.7=67-6.7X=10(95)9+4x=534x=53-94x=444x十4=44十4X=11(96)2x+8=162x=16-82x=82x十2=8十2X=4(97)20 x-14x=246x=246x6=246X=4(98)x+7x=88x=8X=1(99)9x-3x=66x=6X=1(100)6x-8=46x-8
25、+8=4+86x=12X=2(101)5x+x=96x=96xx=1.5(102)8x-8=6x8x-8+8=6x+88x-6x=6x-6x+82x=82xX=4(103)45x=204x+4=20+4555X=25(104)2x-6=122x-6+6=12+62x=182xX=9(105)7x+7=147x+7-7=14-77x=77x-7=7-7X=1(106)6x-6=06x-6+6=0+66x=6X=1(107)5x+6=115x+6-6=11-6 5x=5X=1(108)2x-8=102x-8+8=10+82x=1861X=9(109)2.5x-8=42.5x-8+8=4+82.5x
26、=122.5x-2.5=12-2.5X=4.83(110)x-_=74X-3+3=7+3444X=7.75(111)3x+7=283x+7-7=28-73x=213x-3=21-3X=7(112)3x-7=263x-7+7=26+73x=333x3=333X=11(113)9x-x=168x=168x十8=16十8X=2(114)24x+x=5025x=5025x-25=50-25X=2(115)1.2x-8=41.2x-8+8=4+81.2x=121.2x十1.2=12十1.2X=10(116)3x-8=313x-8+8=31+83x=393x-3=39-3X=13(117)6x+6=126
27、x+6-6=12-66x=6X=1(118)3x-3=33x-3+3=3+33x=63x3=63X=2(119)5x-3x=42x=42x十2=4十2X=2(120)2x+16=192x+16-16=19-162x=32x十2=3十2X=1.5(121)5x+8=195x+8-8=19-85x=115x-5=11-5X=2.2(122)14-6x=814-6x+6x=8+6x6x+8-8=14-86x=6X=1(123)15+6x=276x+15-15=27-156x=126x-6=12-6 X=2(124)5-8x=45-8x+8x=4+8x8x+4-4=5-48x=18x十8=1十8X=0
28、.125(125)7x+8=157x+8-8=15-87x=7X=1(126)9-2x=19-2x+2x=1+2x2x+1-1=9-12x=82x十2=8十2175x+4-4=9-45x=5X=1(128)10-x=8X=10-8X=2(129)8x+9=17 8x+9-9=17-98x=8X=1(130)9+6x=15 6x+9-9=15-96x=6X=1(131)x+9x=4+710 x=1110 x十10=11十10X=1.1(132)2x+9=172x+9-9=17-92x=82x十2=8十2X=4(133)8-4x=6 8-4x+4x=6+4x4x+6-6=8-64x=24x十2=2
29、十4X=0.5(134)6x-7=28 6x-7+7=28+76x=366x6=366X=6(135)7x-9=207x-9+9=8+207x=287x-7=28-7X=4(136)x-56=1X=56+1X=57(137)8-7x=18-7x+7x=1+7x7x+1-仁8-17x=7X=1(138)x-30=12X-30+30=12+30X=42(139)6x-21=216x-21+21=21+216x=426x6=426X=7(140)6x-3=66x-3+3=6+36x=96x6=96X=1.5(141)9x=189x十9=18十9X=2(142)4x-18=144x-18+18=14+
30、184x=324x-4=32-4X=8(143)5x+9=115x+9-9=11-95x=25x十5=2十5X=0.4(144)17-2x=1117-2x+2x=11+2x2x+11-11=17-112x=62x十2=6十2X=3(145)x+4+8=23X+12=23X=23-12X=11(146)7x-12=97x-12+12=9+127x=21187x-7=21-7X=3(147)X-5.7=2.15x=5.7+2.15X=7.85(148)5X-2X=183x=183x-3=18-3X=6(149)3X+0.5=53x+0.5-0.5=5-0.53x=4.53x3=4.53X=1.5(
31、150)3.5X2=4 x4x=74x十4=7十4X=1.75(151)26X1.5=2x2x=392x十2=39十2X=18(152)0.5X1616X0.1=4x4x=6.44x十4=6.4十4X=1.6(153)9.26X=0.402X=9.26-0.402X=8.858(154)36.9-X=0.3X=36.9-0.3X=123(155)X-0.5=2.6X=0.5X2.6X=1.3(156)935x=8093-5X+5X=80+5X 5X+80-80=93-805X=135X-5=13-5X=2.6(157)180-6x=54180-6X+6X=54+6X6X+54-54=180-5
32、46X=1266X-6=126-6X=21(158)9+4x=404X+9-9=40-94X=314X-4=31-4X=7.75(159)0.2x0.4+0.5=3.70.2X-0.5+0.5-0.4+0.4=3.7-0.5+0.40.2X=3.60.2X-0.2=3.6-0.2X=18(160)9.4x0.4x=16.29X=16.29X-9=16.2-9 X=1.8(161)924x=2092-4X+4X=20+4X4X+20-20=92-204X=724X-4=72-4(162)X=18(163)7x-6=1.47x-6X6=1.4X67X=8.47X-7=8.4-7X=1.2(163)
33、16x+34x=150X=150X-50=1-50X=0.02(164)18x14x=124X=124X-4=12-4X=3(165)3 x42-14=153X-3=153X-3+3=15+33X=183X-3=18-3X=6(166)12+4x=56194X+12-12=56-124X=444X-4=44-4X=11(167)22-14x=1222-14X+14X=12+14X14X+12-12=54-1214X=4214X十14=42十14X=3X=10.7-8.3X=2.4=305X-5=30-5X=6X=5.6+9.4X=15-0.8=90X=0.8X90X=72-8=163X-8+8
34、=16+83X=243X-3=24-3X=83X+9-9=27-93X=183X-3=18-3X=67X+5.3-5.3=7.4-5.37X=2.17X-7=2.1-7X=0.3-5=4.8 3X=4.8X5 3X=243X-3=24-3X=8(176)X-0.8X=60.2X=60.2X-0.2=6-0.2X=30(177)12x+8x=4.820X=4.820X-20=4.8-20X=24(178)7(x-2)=497X-14=497X-14+14=49+147X=637X-7=63-7X=9(179)4X8+2x=362X+32=362X+32-32=36-322X=42X-2=4-2X=2(180)(x-2)-3=7X-2=3X7X-2=21X=23(181)x-5+9=21X-5=21-9X-5=12X=12X5X=60(182)(300-x)-5=30300-X=30X5300-X=150X=300-150X=150(183)91-x=1.3X=91-1.3X=70(184)41-3x=1741-3X+3X=17+3X3X+17-17=41-173X=243X-3=24-3X=88(168)X+8.3=10.7(169)5x(170)x-5.6=9.4(171)x(172)3x(173)3x+9=27(174)5.3+7x=7.4(175)3x19