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1、五年級解方程題有答案(12) X+8.3=10.7(11)91 +x = 1.3(28)0.273 +x=0.35(1) (0.5+x)+x=9.8+2(13)15x=3(2) 2(X+X+0.5)=9.8(14) 3x 8 = 16(3) 25000+x=6x(15) 3x+9=27(4) 3200=440+5X+X(16)18(x-2)=270(5) X-0.8X=6(17)12x=300-4x(6)12x-8x=4.8(18)7x+5.3=7.4 7.5+2X=15(19) 3x+5=4.8(8)1.2x=81.6(25)0.5x+8=43 x+5.6=9.4(26)6x-3x=18(1

2、0)x-0.7x=3.6(27)7(6.5+x)=87.5(29)1.8x=0.972(42)5.6x=33.6(41)x+19.8=25.8(53)4x-1.3 X6=2.6x +0.756=909.8-x=3.8(43)0.1(x+6)=3.3X0.475.6 +x=12.6(44)(27.5-3.5) +x=45x+12.5=32.3(45)9x-40=55(x+8)=102(46)x+5+9=21x+3x+10=70(47)48-27+5x=313(x+3)=50-x+3(48)10.5+x+21=565x+15=60(49)x+2x+18=783.5-5x=2(50)(200-x)

3、+5=300.3 X7+4x=12.5(51 )(x-140) +70=4x+1.5-1.25=0.75(40 ) 20-9x=2(52)(66) 13(x+5)=169(78) 1.2x-0.5x=6.3(54) 6x+12.8=15.8(55 )150 X2+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 x+4.8=7.26x+18=483(x+2.1)=10.52x-97=34.23.4x-48=26.842x+25x=1341.5(x

4、+1.6)=3.6(71 ) 2(x-3)=5.865x+7=1379x+4 X2.5=914.2 x+2.5x=13410.5x+6.5x=5189x-43x=9.25x-45=100(65) 12x-9x=8.7(91) x +14x=75(90) 23x=14x+27(102)8x-8=6x23.4=2x4x-x=48.64.5x-x=28(82)X-5.7=2.155X-2X=183X+0.7=73.5 X2= 4.2+x26 X1.5= 2x+100.5 X16T6X0.2=4x13 9.25 X=0.40318.9 力=0. 3(92 ) 95 5x=80(93) 1.8 +6x

5、=54(94) 6.7x 60.3 =6.7(95) 9 +4x=53(96) 2x+8=16(97) 20 x-14x=24(98)x+7x=8(99)9x-3x=6(100 ) 6x-8=4(101 ) 5x+x=9,4(103)5 x=20(115) 1.2x-8=4(127) 4+5x=9(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=19

6、(122) 14-6x=83(110) x- - =7 4(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(140) 6x-3=610-x=88x+9=179+6x=15x+9x=4+72x+9=178-4x=66x-7=287x-9=20 x-56=18-7x=1(138)x-30=12(139) 6x-21=21(141) 9x=18(142) 4x-18=14(143) 5x+9=11(144)17-2x=11(145)x+4+8=2

7、3(146)7x-12=9(147)X-5.7=2.15(148)5X-2X=18(149) 3X +0.5=5(150) 3.5 X2= 4 x(151) 26 X1.5= 2x(152) 0.5 X16T6 X0.1=4x(164) 18x 14x=12(175) 3x +5=4.89.26 X=0.402(165) 3 x 42 +14=15(166) 12 +4x=5636.9 *0.3X S5=2.6(167) 22 14x=1293 5x=80(168) X+8.3=10.7180-6x=54(169) 5x =309 +4x=40(170) x-5.6=9.40.2x 0.4 +

8、0.5 =3.7(171) x +0.8=909.4x 0.4x =16.2(172) 3x 8 = 1692 4x=20(173) 3x+9=277x 1.4(174) 5.3+7x=7.416x +34x=1(2) 2(X+X+0.5)=9.8(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(184)41-3x=174 X8+2x=36(x-2) +3=7五年級解方程180題答案2x+2x+1=9.8(1 ) (0.5+x)+x=9.8+24x+1-1=

9、9.8-10.5+2x=4.94x=8.80.5+2x-0.5=4.9-0.54x +4=8.8 +42x=4.4X=2.22x +2=4.4 +225000+x=6xX=2.225000+x-x=6x-x5x=25000X=683x=243x +3=24 +31.2x +1.2=81.6 +1.25x +5=25000 +5X=50003200=440+5X+X6x+440=32006x+450-450=3200-4406x=27606x +6=2760 +6X=460X-0.8X=60.2x=60.2x +0.2=6 +0.2X=30(6)12x-8x=4.84x=4.84x +4=4.8

10、 +4X=1.27.5+2X=152x+7.5-7.5=15-7.52x=7.52x +2=7.5 +2X=3.751.2x=81.6x+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 Xx1.3x=911.3x +1.3=91 +1.3X=70X+8.3=10.7X+8.3-8.3=10.7-8.3X=2.415x =315x +15=3 +15X=0.23x -8 = 163x-8+8=16+8X=83x=243x+9=273x+9-9=27-9

11、3x=183x +3=18 +33x=618(x-2)=27018x-36=27018x-36+36=270+3618x=30618x +18=306 +18X=1712x=300-4x12x+4x=300-4x+4x16x=30016x +16=300 +16X=18.757x+5.3=7.47x+5.3-5.3=7.4-5.37x=2.17x +7=2.1 +7X=0.33x +5=4.83x+5X5=4.8 X5+63x +3=24 +3X=830 +x+25=8530 +x+25-25=85-2530 +x=6030 +x Xx=60 Xx30=60 x60 x +60=30 +60X

12、=0.51.4 X8-2x=611.2-2x+2x=6+2x11.2=6+2x2x+6-6=11.2-62x=5.22x +2=5.2 +2X=2.66x-12.8 X3=0.066x-38.4=0.066x=38.466x +6=38.46X=6.41410-3x=170410-3x+3x=170+3x170+3x=4107x +7=42 +77x=423x+170-170=410-1703x=2403x +3=240 +3X=803(x+0.5)=213x+1.5=213x+1.5-1.5=21-1.53x=19.53x +3=19.5 +3X=6.50.5x+8=430.5x+8-8=4

13、3-80.5x=350.5x +0.5=35 +0.5X=706x-3x=183x=183x +3=18 +3X=67(6.5+x)=87.57x+45.5=87.57x+45.5-45.5=87.5-45.5X=60.273 +x=0.35x=0.273 +0.35X=0.781.8x=0.9721.8x +1.8=0.972 +1.8X=0.54x +0.756=90 x +0.756 X0.756=90 X0.756X=68.040.1(x+6)=3.3 X0.40.1x+0.6=1.320.1x+0.6-0.6=1.32-0.60.1x=0.720.1x +0.1=0.72 +0.1X

14、=7.2(27.5-3.5) +x=424 +x=4x=24 +4X=6(33)9x-40=59x-40+40=5+40200-x=150(200-x) +5 X5=30 X59x=459x +9=45 +9X=5x+5+9=21 x+5+9-9=21-9x+5=12x+5X5=12 X5X=6048-27+5x=315x+21-21=31-215x=105x -5=10 +5X=210.5+x+21=56x+31.5-31.5=56-31.5x=24.5x+2x+18=783x+18-18=78-183x=603x +3=60 +3X=20(200-x) +5=30200-x+x=150+x

15、150+x=200X+150-150=200-150X=50(x-140) +70=4(x-140) +70 X70=4 X70X-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 +5.6X=6(43) 9.8-x=3.89.8-x+x=3.8+xX=154x +4=60 +44x=10.43.8+x=9.8X=9.8-3.8X=6(44 ) 75.6 +x=12.6X=7

16、5.6 +12.6X=6(45 )5x+12.5=32.35x+12.5-12.5=32.3-12.55x=19.85x+5=19.8 +5X=3.965(x+8)=1025x+40=1025x+40-40=102-405x=625x +5=62 +5X=12.4x+3x+10=704x+10=704x+10-10=70-104x=603(x+3)=50-x+33x+9=53-x 3x+x+9-9=53-x+x-94x=444x +4=44 +4X=115x+15=605x+15-15=60-155x=455x +5=45 +5X=9(50 )3.5-5x=23.5-5x+5x=2+5x5x+

17、2=3.55x+2-2=3.5-25x=1.55x +5=1.5 +5X=0.3(51 ) 0.3 X7+4x=12.54x+2.1=12.54x+2.1-2.1=12.5-2.14x +4=10.4 +4(56 )2x-20=422.2x +22.2=33.3 +22.22x-20+20=4+202x=242x +2=24 +2X=123x+6=183x+6-6=18-63x=123x +3=12 +3X=42(2.8+x)=10.45.6+2x=10.42x+5.6-5.6=10.4-5.62x=4.82x +2=4.8 +2X=2.4(59 ) (x-3) +2=7.5(x-3 ) +2

18、 X2=7.5 X2X-3=15X=18(60 ) 13.2x+9x=33.322.2x=33.3X=2.6(52 ) x+1.5-1.25=0.75x+1.5-1.25+1.25=0.75+1.25x+1.5=2x+1.5X1.5=2 X1.5X=34x-1.3 X6=2.64x-1.3 X6+1.3 X6=2.6+1.3X64x=10.44x+4=10.4 +4X=2.66x+12.8=15.86x+12.8-12.8=15.8-12.86x=36x +6=3 +6X=0.5(55 )150 X2+3x=6903x+300=6903x+300-300=690-3003x=3903x+3=3

19、90 +3X=130X=1.5(66 ) 13(x+5)=169X=2.9(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= 10.5-6.33x=4.23x -3=4.2 +3X=1.4(65 ) 12x-9x=8.73x=8.73x -3=8.7 +313x+65=16913x+65-65=169-6513x=10413x -13=

20、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=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=1.2X=206.7x y.7=134 +6.73x=48.61.5x +1.5=1.2 +1.5X=0.8(71 ) 2(x-3)=5.82

21、x-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 y5=130 +65X=29x+4 X2.5=919x+10=919x+10-10=91-109x=819x +9=81 +9X=94.2 x+2.5x=1346.7x=13410.5x+6.5x=5117x=5117x +17=51 +17X=389x-43x=9.246x=9.246x +46=9.2 +46X=0.25x-45=1005x-45+45=100+455x=1455x +5=145 +5X=291.2x-0.5x=

22、6.30.7x=6.30.7x +0.7=6.3 +0.7X=923.4=2x2x +2=23.4 +2X=11.74x-x=48.63x +3=48.6 +32x+10-10=39-10X=16.2 (81) 4.5x-x=283.5x=283.5x +3.5=28 +3.5 X=8 (82 ) X-5.7=2.15X=5.7+2.15X=7.85 (83 ) 5X-2X=183x=18 3x+3=18 +3X=6(84 ) 3X+0.7=7 3x+0.7-0.7=7-0.73x=6.33x+3=6.3 +3 X=2.13.5 X2= 4.2+x4.2+x=7X=7-4.2 X=2.826

23、X1.5= 2x+10 2x+10=392x=292x +2=29 +2X=14.50.5 X16 T6 X0.2=4x4x=4.84x +4=4.8 +4X=1.213 9.25-X=0.403X=139.25-0.403X=138.84718.9 +X=0. 3X=18.9 +0.3X=6323x=14x+2723x-14x=14x-14x+279x=279x +9=27 +9X=3x +14x=7515x=7515x +15=75 +15X=5(92 ) 95 - 5x = 8095-5x+5x=80+5xX=42x=82x=82x +2=8 +22x +2=8 +2(97) 20 x-

24、14x=246x=246x y=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 +6x=1.5(102)8x-8=6x8x-8+8=6x+88x-6x=6x-6x+85x+80=955x+80-80=95-805x=15X=3(93 ) 1.8 +6x = 546x=54-1.86x=52.26x +6=52.2 抬X=8.76.7x 60.3 = 6.76.7x=60.3+6.76.7x=676.7x +6.7=67 +6.7X=109 + 4

25、x = 534x=53-94x=444x +4=44 +4X=112x+8=162x=16-8XH44(1。3) X2。54 4 x +1 U20 + I5 5XH25(1。4) 2X6H122X6+6H12+62X82x +28 +2XH9(105 ) 7X+7H147X+77H1477XH77x +7H7 +7X6X6H。6X6+6H0+66XH6X5X+6H115X+66H1165XH5XH12X&H102X&+8H10+82XH18XH9 (109) 25X&H42.5X&+8U4+82.5XH122.5X +2U1H12 +25XH4OO3(11。) XIH7433 34 4 4XH

26、7.75(111 ) 3X+7H283X+77H2873XH213x +3H21 +3XH73X7H26 3X7+7H26+73XH333x +3H33 +3XH119XXH168X68X+8H16 +8XH2(114) 24x+x=502x=4X=2X=2(119) 5x-3x=4(124) 5-8x=42x +2=4 +2X=22x+16=192x+16-16=19-162x=32x +2=3 +2X=1.55x+8=195x+8-8=19-85x=115x -5=11 +5X=2.214-6x=814-6x+6x=8+6x6x+8-8=14-86x=6X=115+6x=276x+15-1

27、5=27-156x=126x +6=12 +625x=5025x +25=50 +25X=21.2x-8=41.2x-8+8=4+81.2x=121.2x +1.2=12 +1.2X=103x-8=313x-8+8=31+83x=393x +3=39 +3X=136x+6=126x+6-6=12-66x=6X=13x-3=33x-3+3=3+33x=63x +3=6 +35-8x+8x=4+8x8x=88x+9-9=17-96x=368x+4-4=5-48x=18x +8=1 +8X=0.1257x+8=157x+8-8=15-87x=7X=19-2x=19-2x+2x=1+2x2x+1-1=

28、9-12x=82x+2=8 +2X=44+5x=95x+4-4=9-45x=5X=110-x=8X=10-8X=28x+9=17X=19+6x=156x+9-9=15-96x=6X=1x+9x=4+710 x=1110 x +10=11 +10X=1.12x+9=172x+9-9=17-92x=82x +2=8 +2X=48-4x=68-4x+4x=6+4x4x+6-6=8-64x=24x +2=2 +4X=0.56x-7=286x-7+7=28+76x +6=36 +6(140) 6x-3=6X=7X=36x-3+3=6+36x=96xy=9日X=1.59x=189x +9=18 +9X=2

29、4x-18=144x-18+18=14+184x=324x +4=32 +4X=85x+9=115x+9-9=11-95x=25x +5=2 +5X=0.417-2x=1117-2x+2x=11+2x2x+11-11=17-112x=62x +2=6 +2X=67x-9=207x-9+9=8+207x=287x -7=28 +7X=4x-56=1X=56+1X=578-7x=18-7x+7x=1+7x7x+1-1=8-17x=7X=1x-30=12X-30+30=12+30X=426x-21=216x-21+21=21+216x=426x +6=42 +6(145)x+4+8=23X=1.75

30、5X +5=13 +5+4X+12=23X=23-12X=117x-12=97x-12+12=9+12 7x=21 7x -7=21 +7X=3X-5.7=2.15x=5.7+2.15X=7.855X-2X=183x=183x -3=18 +3X=63X +0.5=53x+0.5-0.5=5-0.53x=4.53x +3=4.5 +3 X=1.53.5 X2= 4 x4x=74x -4=7 +426 X1.5= 2x2x=392x +2=39 +2X=180.5 X16 T6 X0.1=4x4x=6.44x +4=6.4X=1.69.26 -X=0.402X=9.26-0.402X=8.85836.9 +X=0.3X=36.9 +0.3X=123X +0.5=2.6X=0.5 X2.6X=1.393 - 5x = 8093-5X+5X=80+5X5X+80-80=93-805X=13X=2.6(157) 180-6x= 544X -4=72 +44X+12-12=56-124X=72X=187x+6=1.47x+6X6=1.4 X67X=8.47X +7=8.4 +7X=1.216x +34x=150X=150X +50=1 +50X=0.0218x - 14x=124X=124

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