五年级方程题170道

1、精品文档五年级方程题170道精品文档(1) (0.5+x)+x=9.8 +2(12) X+8.3=10.7 2(X+X+0.5)=9.8(13) 15x =3(3) 25000+x=6x(14) 3x -8=16(4) 3200=440+5X+X(15) 3x+9=27 X-0.8X=6(16) 18(x-2)=270(6)12x-8x=4.8(17) 12x=300-4x(7) 7.5+2X=15(18) 7x+5.3=7.4(8)1.2x=81.6(19) 3x +5=4.8 x+5.6=9.4(25) 0.5x+8=43(10)x-0.7x=3.6(26) 6x-3x=18(11)91

2、+x=1.3(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(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=1

3、2.6(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 X7+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(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) 6

4、x+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 X2.5 =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(82)X

5、-5.7=2.15(83) 5X-2X=18(84) 3X+0.7=7(85) 3.5 X2= 4.2+x(86) 26 X1.5= 2x+10(87) 0.5 X 16 16X0.2=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(98)x+7x=8(99) 9x-3x=6(111)3x+7=28(100 ) 6x-8=

6、4(112) 3x-7=26(101) 5x+x=9(113) 9x-x=16(102) 8x-8=6x(114) 24x+x=504(103) x=205(115) 1.2x-8=4(104) 2x-6=12(116) 3x-8=31(105 )7x+7=14(117) 6x+6=12(106) 6x-6=0(118) 3x-3=3(107) 5x+6=11(119) 5x-3x=4(108) 2x-8=10(120) 2x+16=19(109) 2.5x-8=4(121) 5x+8=193 一(110) x- r=(122) 14-6x=84(123) 15+6x=27 (124)5-8x

7、=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(138)x-30=12(139) 6x-21=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(146) 7x-12=9(158) 9 +4x= 40(14

8、7) X-5.7=2.15(159) 0.2x-0.4 +0.5 =3.7(148) 5X-2X=18(160) 9.4x-0.4x =16.2(149) 3X +0.5=5(161) 92 4x = 20(150) 3.5 X2= 4 x(162) 7x + 6=1.4(151) 26 X 1.5= 2x(163) 16x +34x=1(152) 0.5 X16 16X 0.1=4x(164) 18x -14x=12(153) 9.26 X=0.402(165) 3 x 42 + 14=15(154) 36.9 +X=0.3(166) 12 + 4x=56(155) X +0.5=2.6(1

9、56) 93 5x = 80(167) 22 14x=12(157) 180-6x =54(168) X+8.3=10.7(177) 12x+8x=4.8(169) 5x =30(178) 7(x-2)=49(170) x-5.6=9.4(179)4 X 8+2x=36(171) x +0.8=90(180) (x-2)+ 3=7(172) 3x 8= 16(181) x +5+9=21(173) 3x+9=27(182)(300-x) +5=30(174) 5.3+7x=7.4(183) 91 + x =1.3(175) 3x + 5=4.8(176) X-0.8X=6(184) 41-3x

10、=17精品文档五年级解方程180题答案16x=300X=68精品文档(1) (0.5+x)+x=9.8+ 20.5+2x=4.90.5+2x-0.5=4.9-0.5 2x=4.42x + 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=8.84x +4=8.8 + 4 X=2.2 (3) 25000+x=6x 25000+x-x=6x-x5x=25000 5x + 5=25000 + 5 X=5000(4) 3200=440+5X+X 6x+440=32006x+450-450=3200-440 6x=27606x +

11、 6=2760 + 6 X=460(5) X-0.8X=6 0.2x=60.2x+ 0.2=6 + 0.2X=30 (6)12x-8x=4.8 4x=4.8 4x + 4=4.8 + 4 X=1.2(7) 7.5+2X=15 2x+7.5-7.5=15-7.5 2x=7.52x + 2=7.5 + 2X=3.75 (8) 1.2x=81.6 1.2x + 1.2=81.6 + 1.2 x+5.6=9.4X+5.6-5.6=9.4-5.6X=3.8(10)x-0.7x=3.60.3x=3.60.3x +0.3=3.6 + 0.3X=12(11)91 + x= 1.391 + xXx=1.3 x

12、x1.3x=911.3x + 1.3=91 + 1.3X=70(12) X+8.3=10.7 X+8.3-8.3=10.7-8.3X=2.4(13) 15x= 315x+ 15=3 + 15X=0.2(14) 3x -8= 16 3x-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+4x精品文档16x +

13、 16=300 + 16X=18.75(18) 7x+5.3=7.47x+5.3-5.3=7.4-5.37x=2.17x + 7=2.1 + 7X=0.3(19) 3x +5=4.8 3x + 5 X 5=4.8 X 53x=24 3x + 3=24 + 3X=8(20) 30+ x+25=8530 + x+25-25=85-2530+ x=6030+ x x x=60 x x30=60x 60x+ 60=30 + 60X=0.5(21) 1.4 X 8-2x=621.2- 2x+2x=6+2x11.2=6+2x2x+6-6=11.2-62x=5.2 2x + 2=5.2 +2X=2.6(22

14、) 6x-12.8X 3=0.066x-38.4=0.066x=38.46 6x+ 6=38.46 + 6X=6.41(23) 410-3x=170410-3x+3x=170+3x170+3x=4103x+170-170=410-1703x=240 3x+ 3=240 + 3X=80(24) 3(x+0.5)=213x+1.5=213x+1.5-1.5=21-1.53x=19.5X=6.5(25) 0.5x+8=430.5x+8-8=43-80.5x=35 0.5x+ 0.5=35 +0.5X=70(26) 6x-3x=183x=18 3x + 3=18 + 3X=6(27) 7(6.5+x)

15、=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=0.273+ 0.35X=0.78(29) 1.8x=0.9721.8x+ 1.8=0.972 + 1.8X=0.54(30) x + 0.756=90x+ 0.756 X 0.756=90 X 0.756X=68.04(31) 0.1(x+6)=3.3X 0.40.1x+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=42

16、4+ x=4x=24+ 4X=6(33) 9x-40=59x-40+40=5+409x=459x + 9=45 + 93x + 3=19.5 + 3X=5精品文档精品文档(34) x +5+9=21x + 5+9-9=21-9x + 5=12x +5X 5=12 X 5X=60(35) 48-27+5x=315x+21-21=31-215x=10 5x + 5=10 + 5X=2(36) 10.5+x+21=56x+31.5-31.5=56-31.5x=24.5(37) x+2x+18=783x+18-18=78-183x=603x + 3=60 + 3X=20(38) (200-x)+ 5=

17、30(200-x)+ 5 X 5=30 X 5200-x=150200-x+x=150+x150+x=200X+150-150=200-150X=50(39) (x-140)+ 70=4(x-140)+ 70 X 70=4 X 70X-140=280X-140+140=280+140X=420(40) 20-9x=29x=20-29x=189x + 9=18 + 9X=2(41) x+19.8=25.8X+19.8-19.8=25.8-19.8X=6(42 )5.6x=33.65.6x+5.6=33.6 + 5.6(43) 9.8-x=3.89.8-x+x=3.8+x3.8+x=9.8X=9.

18、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=625x + 5=62 + 5X=12.4(47) x+3x+10=704x+10=704x+10-10=70-104x=604x + 4=60 + 4X=15(48) 3(x+3)=50-x+33x+9=53-x3x+x+9-9=53-x+x-94x=444x + 4=44 + 4X=11(49)

19、5x+15=605x+15-15=60-155x=455x + 5=45 + 5X=9(50) 3.5-5x=23.5-5x+5x=2+5x5x+2=3.5X=65x+2-2=3.5-2精品文档精品文档5x=1.55x + 5=1.5 + 5X=0.3(51 ) 0.3 X 7+4x=12.54x+2.1=12.54x+2.1-2.1=12.5-2.14x=10.44x+ 4=10.4 +4X=2.6(52) x +1.5-1.25=0.75x + 1.5-1.25+1.25=0.75+1.25x+ 1.5=2x +1.5 X 1.5=2 X 1.5 X=3(53) 4x-1.3 X 6=2.

20、6 4x-1.3 X 6+1.3 X 6=2.6+1.3 X 64x=10.44x+ 4=10.4 + 4X=2.6(54) 6x+12.8=15.86x+12.8-12.8=15.8-12.86x=3 6x+ 6=3+6X=0.5(55) 150 X 2+3x=690 3x+300=6903x+300-300=690-3003x=390 3x+ 3=390 + 3X=130(56) 2x-20=42x-20+20=4+202x=24 2x + 2=24 + 2X=12(57) 3x+6=183x+6-6=18-63x=123x +3=12 + 3 X=45.6+2x=10.42x+5.6-5

21、.6=10.4-5.62x=4.82x + 2=4.8 + 2X=2.4(59) (x-3)+ 2=7.5(x-3 ) + 2X 2=7.5 X 2X-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 + 2=100 + 2X=50(62) x+4.8=7.2X=7.2-4.8X=2.4(63) 6x+18=486x+18-18=48-186x=306x + 6=30 + 6x=5(64) 3(x+2.1)=10.53x+6.3=10.53x=10.5

22、-6.33x=4.23x + 3=4.2 +3X=1.4(65) 12x-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 + 13(58) 2(2.8+x)=10.4X=8精品文档精品文档(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+2

23、5x=13467x=13467x+67=134 + 67X=2(70) 1.5(x+1.6)=3.61.5x+2.4=3.61.5x=3.6-2.41.5x=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 +2=11.8 + 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 + 9=81 + 9X=9(74) 4.2 x+2.5x=

24、 1346.7x=1346.7x+ 6.7=134 +6.7(75) 10.5x+6.5x=5117x=5117x+ 17=51 +17X=3(76) 89x-43x=9.246x=9.246x+ 46=9.2 + 46X=0.2(77) 5x-45=1005x-45+45=100+455x=1455x + 5=145 + 5X=29(78) 1.2x-0.5x=6.30.7x=6.30.7x+ 0.7=6.3 + 0.7X=9(79) 23.4=2x2x +2=23.4 + 2X=11.7(80) 4x-x=48.63x=48.63x +3=48.6 + 3X=16.2(81) 4.5x-x

25、=283.5x=283.5x+3.5=28 + 3.5X=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=6.33x + 3=6.3 + 3X=2.1(85) 3.5 X 2= 4.2+xX=204.2+x=7精品文档精品文档X=7-4.2X=2.8(86) 26 X 1,5= 2x+102x+10=392x+10-10=39-102x=292x + 2=29 + 2X=14.5(87) 0.5 X 16 16 X 0.2=4x4x=4.8 4x

26、+ 4=4.8 + 4X=1.2(88) 13 9.25 X=0.403X=139.25-0.403X=138,847(89) 18.9+ X=0. 3X=18.9+ 0.3X=63(90) 23x=14x+ 2723x-14x=14x-14x+279x=279x + 9=27 + 9X=3(91) x + 14x=7515x=7515x + 15=75 + 15X=5(92 ) 95 - 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(

27、94) 6.7x-60.3 = 6.76.7x=60.3+6.76.7x=676.7x+ 6.7=67 +6,7(95) 9 + 4x= 534x=53-94x=444x + 4=44 + 4X=11(96) 2x+8=162x=16-82x=82x -2=8- 2X=4(97) 20x-14x=246x=246x + 6=24 + 6X=4(98) x+7x=88x=8X=1(99) 9x-3x=66x=6X=1(100 ) 6x-8=46x-8+8=4+86x=12X=2(101) 5x+x=96x=96x + 6=9 + 6 x=1.5(102) 8x-8=6x8x-8+8=6x+88x

28、-6x=6x-6x+82x=82x + 2=8 + 2X=4(103)4 x ;5X=254x=2054 =20 - 45 5(104)2x-6=122x-6+6=12+62x=182x+ 2=18 + 2X=10X=9精品文档精品文档X=2(115) 1.2x-8=41.2x-8+8=4+81.2x=121.2x+ 1.2=12 + 1.2X=10(116) 3x-8=313x-8+8=31+83x=393x + 3=39 + 3X=13(117) 6x+6=126x+6-6=12-66x=6X=1(118) 3x-3=33x-3+3=3+33x=63x + 3=6 + 3X=2(119)

29、5x-3x=42x=4 2x + 2=4 + 2X=2(120) 2x+16=192x+16-16=19-162x=32x+ 2=3 + 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=12(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=5

30、X=1(108) 2x-8=102x-8+8=10+82x=18X=9(109) 2.5x-8=42.5x-8+8=4+82.5x=122.5x+ 2.5=12 +2.5X=4.83(110) x- _ =743X-3 + 3 =7+4 44X=7.75(111) 3x+7=283x+7-7=28-7 3x=21 3x+ 3=21 + 3X=7(112) 3x-7=263x-7+7=26+73x=333x + 3=33 + 3X=11(113) 9x-x=168x=168x + 8=16 + 8X=2(114) 24x+x=50 25x=50 25x + 25=50 +25 精品文档6x+ 6

31、=12 + 6精品文档4x+6-6=8-64x=2 4x + 2=2 + 4X=0.5(134) 6x-7=286x-7+7=28+76x=366x + 6=36 + 6X=6(135) 7x-9=207x-9+9=8+207x=287x + 7=28 + 7X=4(136) x-56=1X=56+1X=57(137) 8-7x=1 8-7x+7x=1+7x7x+1-1=8-17x=7X=1(138) x-30=12 X-30+30=12+30X=42(139) 6x-21=21 6x-21+21=21+216x=426x + 6=42 + 6X=7(140) 6x-3=66x-3+3=6+3

32、6x=96x + 6=9 + 6 X=1.5(141) 9x=189x +9=18 + 9X=2(142) 4x-18=144x-18+18=14+18X=2(124) 5-8x=45-8x+8x=4+8x8x+4-4=5-48x=18x + 8=1 + 8X=0.125(125) 7x+8=157x+8-8=15-87x=7X=1(126) 9-2x=19-2x+2x=1+2x2x+1-1=9-12x=82x + 2=8 + 2X=4(127) 4+5x=95x+4-4=9-45x=5X=1(128) 10-x=8X=10-8X=2(129) 8x+9=178x+9-9=17-98x=8X=

33、1(130) 9+6x=156x+9-9=15-96x=6X=1(131) x+9x=4+710x=1110x+ 10=11 + 10X=1.1(132) 2x+9=172x+9-9=17-92x=82x + 2=8 + 2X=4(133) 8-4x=68-4x+4x=6+4x4x=32精品文档精品文档4x + 4=32 + 4X=8(143) 5x+9=115x+9-9=11-95x=25x + 5=2 + 5X=0.4(144) 17-2x=1117-2x+2x=11+2x2x+11-11=17-112x=62x + 2=6 + 2X=3(145) x+4+8=23X+12=23X=23-

34、12X=11(146) 7x-12=97x-12+12=9+127x=217x + 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=4.53x + 3=4.5 + 3X=1.5(150) 3.5 X 2= 4 x4x=74x + 4=7 + 4X=1.75(151) 26 X 1.5= 2x2x=392x + 2=39 + 2X=184x=6.44x+4=6.4 + 4X=1.6(153) 9.26 X=0.402X=9.2

35、6-0.402X=8.858(154) 36.9+ X=0.3X=36.9+ 0.3X=123(155) X +0.5=2.6X=0.5X 2.6X=1.3(156) 93-5x= 8093-5X+5X=80+5X5X+80-80=93-805X=135X + 5=13 + 5X=2.6(157) 180-6x= 54180-6X+6X=54+6X6X+54-54=180-546X=1266X + 6=126 + 6X=21(158) 9 +4x= 404X+9-9=40-94X=314X + 4=31 + 4X=7.75(159) 0.2x 0.4 + 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) 9.4x 0.4x = 16.29X=16.29X + 9=16.2 + 9X=1.8(161) 92-4