五年级解⽅程题有答案
(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 (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+x)=87.5(28)0.273÷x=0.35(29) 1.8x=0.972(30) x÷0.756=90(31) 0.1(x+6)=3.3×0.4(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=12.6
(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)0.3×7+4x=12.5(52)x÷1.5-1.25=0.75
(53)4x-1.3×6=2.6 (54)6x+12.8=15.8 (55)150×2+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)6x+18=48 ()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+4×2.5=91(74) 4.2 x+2.5x=134(75) 10.5x+6.5x=51(76) x-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) 3.5×2= 4.2+x(86) 26×1.5= 2x+10
(87) 0.5×16―16×0.2=4x (88) 13 9.25-X=0.403() 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
(122) 14-6x=8(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 (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
(147) X-5.7=2.15 (148) 5X-2X=18 (149) 3X +0.5=5(150) 3.5×2= 4 x
(151) 26×1.5= 2x (152) 0.5×16―16×0.1=4x (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 (1) 18x-14x=12 (165) 3 x-42÷14=15 (166) 12+4x=56 (167) 22-14x=12 (168) X+8.3=10.7(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 (176) X-
0.8X=6 (177) 12x+8x=4.8 (178) 7(x-2)=49 (179) 4×8+2x=36 (180) (x-2)÷3=7 (181) x÷5+9=21 (182)(300-x)÷5=30 (183) 91÷x=1.3 (184) 41-3x=17五年级解⽅程180题答案(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÷2
X=2.2 (2)2(X+X+0.5)=9.82x+2x+1=9.84x+1-1=9.8-14x=8.84x÷4=8.8÷4
X=2.2 (3)25000+x=6x25000+x-x=6x-x5x=25000
5x÷5=25000÷5 X=5000
(4)3200=440+5X+X 6x+440=32006x+450-450=3200-4406x=27606x÷6=2760÷6X=460(5)X-0.8X=60.2x=60.2x÷0.2=6÷0.2X=30(6)12x-8x=4.84x=4.84x÷4=4.8÷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=81.6
1.2x÷1.2=81.6÷1.2X=68
(9) x+5.6=9.4 X+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÷x×x=1.3×x1.3x=911.3x÷1.3=91÷1.3X=70 (12) X+8.3=10.7X+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=300
16x÷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=4.83x÷5×5=4.8×53x=243x÷3=24÷3X=8
(20) 30÷x+25=8530÷x+25-25=85-2530÷x=6030÷x×x=60×x30=60x60x÷60=30÷60X=0.5
(21) 1.4×8-2x=611.2-2x+2x=6+2x11.2=6+2x2x+6-6=11.2-62x=5.22x÷2=5.2÷2X=2.6
(22) 6x-12.8×3=0.066x-38.4=0.066x=38.466x÷6=38.46÷6
X=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=19.53x÷3=19.5÷3X=6.5
(25) 0.5x+8=430.5x+8-8=43-80.5x=350.5x÷0.5=35÷0.5X=70(26) 6x-3x=183x=183x÷3=18÷3X=6
(27) 7(6.5+x)=87.57x+45.5=87.5
7x+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=90
x÷0.756×0.756=90×0.756X=68.04 (31) 0.1(x+6)=3.3×0.40.1x+0.6=1.320.1x+0.6-0.6=1.32-0.60.1x=0.72
0.1x÷0.1=0.72÷0.1X=7.2 (32) (27.5-3.5)÷x=424÷x=4x=24÷4
X=6 (33) 9x-40=59x-40+40=5+409x=459x÷9=45÷9X=5
(34) x÷5+9=21x÷5+9-9=21-9x÷5=12x÷5×5=12×5X=60
(35) 48-27+5x=315x+21-21=31-215x=105x÷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=30(200-x)÷5×5=30×5200-x=150200-x+x=150+x150+x=200
X+150-150=200-150X=50
(39) (x-140)÷70=4
(x-140)÷70×70=4×70X-140=280
X-140+140=280+140X=420(40)20-9x=29x=20-29x=1x÷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..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÷5
X=3.96 (46)5(x+8)=1025x+40=1025x+40-40=102-405x=625x÷5=62÷5
X=12.4 (47)x+3x+10=704x+10=704x+10-10=70-10
4x=604x÷4=60÷4
X=15 (48)3(x+3)=50-x+33x+9=53-x3x+x+9-9=53-x+x-94x=444x÷4=44÷4X=11
(49)5x+15=605x+15-15=60-155x=455x÷5=45÷5X=9
(50) 3.5-5x=23.5-5x+5x=2+5x5x+2=3.55x+2-2=3.5-25x=1.55x÷5=1.5÷5
X=0.3 (51)0.3×7+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÷1.5×1.5=2×1.5X=3
(53)4x-1.3×6=2.x-1.3×6+1.3×6=2.6+1.3×x=10.44x÷4=10.4÷4
X=2.6 (54)6x+12.8=15.8
6x+12.8-12.8=15.8-12.86x=36x÷6=3÷6X=0.5
(55)150×2+3x=6903x+300=6903x+300-300=690-3003x=3903x÷3=390÷3X=130(56)2x-20=42x-20+20=4+202x=242x÷2=24÷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=10.4-5.62x=4.82x÷2=4.8÷2X=2.4
(59)(x-3)÷2=7.5(x-3)÷2×2=7.5×2X-3=15X=18
(60)13.2x+9x=33.322.2x=33.3
22.2x÷22.2=33.3÷22.2X=1.5 (61)3x=x+1003x-x=x-x+100
2x=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
()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÷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=7
4.83.4x÷3.4=74.8÷3.4
X=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=1.21.5x÷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+4×2.5=919x+10=919x+10-10=91-109x=819x÷9=81÷9X=9
(74) 4.2 x+2.5x=1346.7x=1346.7x÷6.7=134÷6.7
X=20 (75) 10.5x+6.5x=5117x=5117x÷17=51÷17X=3 (76) x-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=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=7-0.7
3x=6.33x÷3=6.3÷3X=2.1
(85) 3.5×2= 4.2+x4.2+x=7X=7-4.2X=2.8
(86) 26×1.5= 2x+102x+10=392x+10-10=39-102x=292x÷2=29÷2X=14.5
(87) 0.5×16―16×0.2=4x4x=4.8
X=1.2
(88) 13 9.25-X=0.403X=139.25-0.403X=138.847() 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=95
5x+80-80=95-805x=15X=3
(93)1.8 +6x=546x=54-1.86x=52.26x÷6=52.2÷6X=8.7
(94) 6.7x-60.3=6.76.7x=60.3+6.76.7x=676.7x÷6.7=67÷6.7X=10
(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=24
X=1(118) 3x-3=33x-3+3=3+33x=63x÷3=6÷3X=2
(119) 5x-3x=42x=42x÷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=126x÷6=12÷6X=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÷2
X=4 (127) 4+5x=95x+4-4=9-45x=5
X=1 (128) 10-x=8X=10-8
X=2 (129) 8x+9=178x+9-9=17-98x=8
X=1 (130) 9+6x=156x+9-9=15-96x=6
X=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+6-6=8-x=24x÷2=2÷4
X=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+1
X=57 (137) 8-7x=1
8-7x+7x=1+7x7x+1-1=8-17x=7X=1
(138) x-30=12X-30+30=12+30X=42 (139) 6x-21=216x-21+21=21+216x=426x÷6=42÷6X=7 (140) 6x-3=66x-3+3=6+36x=96x÷6=9÷6X=1.5 (141) 9x=1x÷9=18÷9X=2
(142) 4x-18=144x-18+18=14+184x=324x÷4=32÷4X=8 (143) 5x+9=115x+9-9=11-95x=25x÷5=2÷5
X=0.4 (144) 17-2x=1117-2x+2x=11+2x2x+11-11=17-112x=62x÷2=6÷2
X=3 (145) x+4+8=23X+12=23X=23-12X=11(146) 7x-12=9
7x-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) 3.5×2= 4 x4x=74x÷4=7÷4X=1.75
(151) 26×1.5= 2x2x=392x÷2=39÷2X=18
(152) 0.5×16―16×0.1=4x4x=6.44x÷4=6.4÷4
X=1.6 (153) 9.26-X=0.402X=9.26-0.402
X=8.858 (154) 36.9÷X=0.3X=36.9÷0.3X=123
(155) X÷0.5=2.6X=0.5×2.6X=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÷0.2
X=18 (160) 9.4x-0.4x=16.29X=16.29X÷9=16.2÷9X=1.8
(161) 92-4x=2092-4X+4X=20+4X4X+20-20=92-204X=724X÷4=72÷4(162)X=18(163)7x÷6=1.47x÷6×6=1.4×67X=8.47X÷7=8.4÷7
X=1.2
(163) 16x+34x=150X=150X÷50=1÷50X=0.02
(1) 18x-14x=124X=124X÷4=12÷4X=3
(165) 3 x-42÷14=153X-3=153X-3+3=15+33X=183X÷3=18÷3X=6
(166) 12+4x=5X+12-12=56-124X=444X÷4=44÷4X=11
(167) 22-14x=1222-14X+14X=12+14X14X+12-12=54-1214X=4214X÷14=42÷14X=3 (168) X+8.3=10.7X=10.7-8.3X=2.4(169) 5x =305X÷5=30÷5X=6
(170) x-5.6=9.4X=5.6+9.4X=15
(171) x÷0.8=90
X=0.8×90X=72
(172) 3x-8=163X-8+8=16+83X=243X÷3=24÷3X=8
(173) 3x+9=273X+9-9=27-93X=183X÷3=18÷3X=6
(174) 5.3+7x=7.47X+5.3-5.3=7.4-5.37X=2.17X÷7=2.1÷7X=0.3
(175) 3x÷5=4.83X=4.8×53X=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÷7
X=9
(179) 4×8+2x=362X+32=362X+32-32=36-322X=42X÷2=4÷2X=2
(180) (x-2)÷3=7X-2=3×7X-2=21X=23
(181) x÷5+9=21X÷5=21-9X÷5=12X=12×5X=60
(182) (300-x)÷5=30300-X=30×5300-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=8
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