五年级数学(方程)习题及答案汇编

五年级数学(方程)习题及答案汇编(1)5x+6x=231(2)5x-9×12=52(3)2.3x-4.7×2=6.7(4)(4.8x+1.6)÷4=4(5)x÷57=2(6)18x+2x+31=151(7)x-6.9=1.6(8)16x+26=186(9)8.8+x=12.3(10)20x+36=76(11)5(x+11)=185(12)(19x+19)÷38=3(13)63+5x=153(14)91x-65x-2.4=5.4(15)0.4x=10(16)3.3-x=2.5(17)x+0.4=6.3(18)9.5x+3.2x=101.6(19)1.4x+1×4=22.2(20)20÷x=10(21)x÷54=0.2(22)2(0.7x+0.8)=17(23)16.5-1.2x=9.3(24)6(0.5x+0.6)=48.6(25)18x+13x-1.3=166.1(26)x÷4=3.2(27)0.5x+2.8=22.3(28)16x+11x+11=146(29)10x÷2=4(30)14x-10x=24(31)6(x+9)=66(32)2(1.3x-5.7)=45.8(33)x-5.2=3(34)4x+5x+21=48(35)7(2x+9)=119(36)(x+19)÷2=19(37)2x-23×4=100(38)x÷32=5(39)0.3x+3.3x+4.9=62.5(40)2.1x-4.4=14.5(41)x-3.5=5.7(42)x-53=44(43)2.8x+0.8×7=16.8(44)4x-0.7x-4.2=38.7(45)91x+80x+2.9=156.8(46)5.4x-0.6x=24(47)4.3x+1.1×2=10.8(48)0.3x÷6=0.2(49)28+x=96(50)167-7x=55(51)x+98=101(52)168-5x=128(53)124÷x=31(54)60x÷8=15(55)6.6-x=1.3(56)6.1+x=14.2(57)11x+8x=38(58)68+x=156(59)2.8+2x=17.6(60)2.5x-5.6=6.9(61)2(x+8)=62(62)x-3.1=4.1(63)11x+8x+29=295(64)51-x=34(65)3.3x-1x-4.9=2(66)12.1-12x=6.1(67)1.7x-0.2×3=11.3(68)91x-73x+1.4=8.6(69)13x=104(70)4.3-2x=3.1(71)19x=19(72)6x-4x+14=28(73)18.5+3x=26(74)(2.2x+6.6)÷2=20.9(75)(17x+5)÷2=45(76)15x-4x=143(77)5(7x+18)=195(78)3x+8x-25=96(79)1.4x-2.1=14.7(80)84x+81x+1.8=84.3(81)74-x=56(82)x-53=12(83)x+5=13.6(84)62x+91x-4=72.5(85)184÷x=46(86)x-8=83(87)2(9x-46)=106(88)49x-3=6.8(89)96x÷6=3.2(90)17.3-3.9x=1.7(91)17.2-8x=11.6(92)8.8x-0.2x-3.7=65.1(93)17x÷51=3(94)63x-34=155(95)2x+40=172(96)54x-36x-3.3=5.7(97)87x-37x+0.3=15.3(98)13x+4x=119(99)(16x-40)÷42=4(100)3(25x-44)=168(101)x÷15=9(102)1.2+0.4x=11.2(103)5(x+2)=170(104)(0.5x+2.8)÷9=1.2(105)4x+3x=35(106)2.3x=18.4(107)30x+13×1.1=32.3(108)9-x=8.5(109)4(3.1x-7.8)=30.8(110)92-2x=52(111)79-x=39(112)0.4x+1=15.4(113)1x+0.9×6=24.4(114)2x-3×23=77(115)80+x=129(116)2.7x-2.4x=6.6(117)4x=56(118)73x-28x+2.8=20.8(119)(9.6x-2.3)÷13=1.3(120)18x+2×96=336(121)1x-2.2×4=6.2(122)16x+14x-46=314(123)113+29x=287(124)1.5x-1.2x-1.9=5.9(125)x-4.7=1.1(126)6.1+7x=16.6(127)x+9.2=9.6(128)9.7x-8.4x=2.6(129)60x+52x+3.2=182.4(130)(0.4x+6.4)÷5=2.4(131)14.5+1.3x=21(132)2.5x+3.3×4=25.7(133)6x-12×2=60(134)x-3.6=4.7(135)25x+30×0.3=21.5(136)3.5x=14(137)28x-34×0.2=4.4(138)4x-3.4=7.4(139)2.1x+5.1=13.5(140)(6x-4.8)÷6=11.2(141)11x-6x-26=54(142)43x-11=118(143)2.5x-3.3×2=10.9(144)4(0.4x-4.8)=36.8(145)12÷x=0.2(146)0.6x+0.5×33=33.3(147)x-4.2=5.7(148)11x+3×4.5=17.9(149)8x+7x=90(150)5.8x+2.2x+3.8=43.8(151)15x-4x=22(152)x-6=46(153)x-66=18(154)6.3x-3.5x=28(155)2x+11x+5=161(156)10x-6x=80(157)5x÷10=1.2(158)3.5x+2.4x+1.2=72(159)6x+3.1x+4.5=86.4(160)16x+3x+35=263(161)(13x-40)÷21=8(162)3x=132(163)x÷4=46(164)x÷8=1.8(165)2(7x-36)=166(166)137+34x=307(167)37x=18.5(168)61x=122(169)177÷x=3(170)8.4x+1.2x-4.8=100.8(171)18x-5x+34=138(172)7.9x+8.6x-4=111.5(173)15x=3(174)82x-74x-0.2=7.8(175)6x+9×7=213(176)15.4-0.3x=7.9(177)x÷7=0.7(178)49x+4.9=19.6(179)8x+49x-3.5=104.8(180)(8x-14)÷5=18(181)8x-3×2.3=9.9(182)69x-20x+0.5=20.1(183)2.2x+3.7=23.5(184)171-18x=45(185)4.5÷x=1.5(186)35x+41x+1=145.4(187)16.2÷x=0.3(188)8.3x+4.4x=127(189)x+71=90(190)5.3x+0.3x+4=65.6(191)5.7x-3.3x+1.9=11.5(192)2x-1.5=12.3(193)16.3-1x=13.3(194)174-3x=162(195)18x-2x-13=35(196)5x-4.5=4.5(197)3x÷12=2(198)3.7x÷74=0.2(199)(12x+24)÷12=17(200)86x-22x+1.7=20.9(201)15.1-11x=3(202)7x+2×17=209(203)12x-55×2=70(204)(3.8x+2.6)÷8=2.7(205)2x+7x+8=251(206)11x+24x-3.1=101.9(207)x÷6=5(208)8.4x-2.6x+0.7=35.5(209)8(4x+6)=112(210)175-10x=85(211)0.5x÷45=0.3(212)5.7+x=11.1(213)0.5x+3.1=6.6(214)8x-4x-16=48(215)150+2x=340(216)17x÷5=3.4(217)13.2÷x=3.3(218)4x÷20=9(219)x+32=98(220)x-5=73(221)5.4x-4.4x+3.3=14.3(222)83-x=60(223)9x+6×1.1=25.5(224)96+x=150(225)0.6x÷7=1.2(226)x+9=15.2(227)1.4x-1.6×2=3.8(228)2.8x+0.9x+1.1=30.7(229)(7.5x+9)÷5=10.8(230)9.6-x=4.8(231)91x=182(232)1.5x+1.4x-0.9=181.8(233)12x-24×2=120(234)128÷x=8(235)2x-26=10(236)2x+17×0.3=14.5(237)88x-10x-2.2=44.6(238)6.4x+1.8x=123(239)2x+47=117(240)0.2x÷8=1.2(241)0.9x+0.6×7=18.6(242)4.7x+6.7x=68.4(243)17x-4x-4.2=25.7(244)6.1x-4.3x+1.2=19.2(245)6.8x-5.8x+1=4(246)x-38=10(247)9x+36x-3.4=19.1(248)(7x+47)÷2=62(249)45x=180(250)16.8-0.5x=13.3(251)8x+35×2=238(252)(6x-5)÷7=13(253)11x-2x-7=20(254)15x+5.6=16.1(255)185-3x=35(256)12.2-2.5x=7.2(257)8.2-x=1.4(258)7.6-x=4.4(259)16x=14.4(260)5x+6x-9=123(261)13.2-3x=12.3(262)10x-8x+41=63(263)7.5-x=6.6(264)9x+7x-28=228(265)9x-3×1.8=8.1(266)(12x+18)÷10=27(267)5x-28=17(268)17x+1.7=20.4(269)0.5x=1.5(270)2.2x÷33=0.6(271)3(22x-32)=36(272)11+14x=15.2(273)11x+5x-46=162(274)4(18x-11)=100(275)6.4x-5.8x-0.4=3.2(276)1.3x-1=17.2(277)0.2x÷10=1(278)3x÷30=0.4(279)(3x+30)÷20=3(280)114+4x=142(281)34x-11x-3.4=26.5(282)120÷x=5(283)3(8x+31)=189(284)6.8x-2.4x+4.9=40.1(285)6.5x÷10=1.3(286)3(7.7x-9.1)=18.9(287)3.5x+0.6x-1.3=113.5(288)9.3x-7.5x=14.4(289)x-6.4=1(290)2(2.1x+2.5)=38.6(291)3x-19×0.2=5.2(292)14.4÷x=0.3(293)4x-2x+23=47(294)97x-11x+4.1=64.3(295)31x÷93=2(296)6x-4×1.7=7.6(297)x+5=14.6(298)3.4x-0.3x=40.3(299)8.2+0.9x=21.7(300)15.9+40x=35.9(301)98-x=89(302)7.4x-0.3x-4.6=9.6(303)3x+33=165(304)14÷x=1(305)x+8.9=14.9(306)70x+43=183(307)78x+4.7=20.3(308)x+37=107(309)19x-10x-16=65(310)7.6+x=13.8(311)2(3x-31)=190(312)4.4x+2x=134.4(313)3.1x+2.7x-3.5=25.5(314)(13x-30)÷6=8(315)2.3x+0.3×16=11.7(316)6x-26×4=88(317)0.8x+1.9x=94.5(318)55x-14x-2.7=50.6(319)5.5+x=5.7(320)0.7x+2.2x=17.4(321)21x-18x+2.3=6.5(322)9(1.9x-1.9)=17.1(323)2.5x+2.9=20.4(324)1.1x-0.2×3=17(325)13x-3×3.1=8.9(326)x-80=10(327)17x-13x+2=8(328)167+32x=327(329)(15x-34)÷2=118(330)6.4-0.2x=3(331)2x+10x+14=254(332)15x-5x=30(333)2x+8×14=166(334)2x÷6=1(335)0.4x-5=5.8(336)6(0.4x+2.2)=22.8(337)4x+13x-44=58(338)161-2x=79(339)54x=162(340)x÷2=1.8(341)14÷x=2(342)x-7.9=1(343)10x-3x=140(344)62x+69x+4.9=83.5(345)186-3x=72(346)3x+5x=64(347)6x+2x+4.3=30.7(348)9x+27=54(349)2(5.4x+2.3)=26.2(350)12.4+0.2x=22(351)x+0.4=2.9(352)(3.1x-0.7)÷37=0.4(353)6.6+2.3x=13.5(354)2x÷44=0.3(355)0.4x-3.8=11(356)9.1x-3.8x=10.6(357)0.4x+0.9×18=17(358)14x-11x+10=34(359)11x-4x-5=58(360)6x+5x-28=192(361)1.1x=18.7(362)(0.5x+7)÷5=1.6(363)0.2x+3.2=12.2(364)11+x=107(365)1.5x+0.9x=67.2(366)77x+48x+4.2=66.7(367)4x+3.9=16.7(368)6x÷20=0.3(369)5x-1.9=7.6(370)68x+3.3=16.9(371)11.6-2x=2.2(372)87-x=71(373)7(0.4x+1)=35(374)2(4x-35)=50(375)6.2+x=8.3(376)0.6x-4.6=3.2(377)5.2+3x=13.3(378)5.2+x=11.2(379)32x÷8=20(380)14x-5.7=9.7(381)1.3x-0.6×30=1.5(382)9x=15.3(383)3x-57=48(384)x÷18=9(385)5(x-26)=95(386)7x+8x-22=53(387)3(0.5x+0.4)=11.7(388)45x+30x-3.5=124(389)40+x=76(390)(4.7x+4.9)÷10=6.6(391)6x-34×0.2=6.4(392)1x+0.4x+4.6=52.2(393)0.2x=18(394)x+1.4=2(395)10x+9x=323(396)39x=117(397)(x+42)÷22=2(398)20x-5×16=100(399)(3.2x-6.4)÷32=1(400)6.6x-0.5x+4.3=77.5(401)8x-2x+12=102(402)49x-21×0.7=4.9(403)(7x-22)÷41=1(404)7x+86×2=326(405)4.1x+0.8x+0.6=10.4(406)60x-19x-0.3=16.1(407)5.3x-3.9x+1.5=23.9(408)72x+33x+4.2=56.7(409)(5.3x-5.4)÷16=4.3(410)20x÷4=30(411)24x-2.6=11.8(412)11x+16x=270(413)40x=12(414)x÷33=0.4(415)7x-4x-33=45(416)x+38=116(417)7.8x-4.4x+4.3=21.3(418)5x=7.5(419)0.3x-2.7=11.7(420)6.6+0.8x=26.6(421)9x-5.1x=27.3(422)18.9-10x=7.9(423)126÷x=6(424)80x+83x-0.3=48.6(425)6.6-x=4.7(426)0.9x+1.8x-1.8=146.7(427)77+x=158(428)64x-10=118(429)43x-3.1=9.8(430)(18x-30)÷5=12(431)9.9x-8.4x-4=5(432)53+x=88(433)19x-4x+30=60(434)10x-4x-49=29(435)11x-3.3=12.1(436)1.4x+4.3=18.3(437)8.7÷x=2.9(438)(4x+7.2)÷32=2.6(439)74x+47x-2.1=82.6(440)15x-9x=30(441)x÷13=0.7(442)x+2.5=10.6(443)55+x=80(444)2.4x+4.2x=105.6(445)3.6x-1.2x=43.2(446)1.8x+3x+1.3=49.3(447)0.4x=8.4(448)11x+22×0.9=39.6(449)7x=16.8(450)8x-39=81(451)1.2x+2.5x-1.3=72.7(452)2.5+x=3.9(453)76-x=68(454)63x-24x-2=40.9(455)(3.1x-2.1)÷6=4.3(456)42x+8×2.4=31.8(457)0.6x÷4=3.6(458)x-37=51(459)56x+94x-2.4=117.6(460)1.3x=15.6(461)16.5+9.5x=35.5(462)16x-5x+30=96(463)12.5+0.3x=21.5(464)x÷9=2(465)1.8+0.2x=19.4(466)107+4x=223(467)13x-8x-3=57(468)3.3x+3.6x-0.3=151.5(469)2.4x-1.7x-3.8=11.6(470)10.4÷x=1.3(471)12x+14x+40=118(472)154÷x=2(473)5(4x-17)=175(474)x÷39=0.4(475)95x-38=152(476)20x+4×10=80(477)2x+1.9=17.1(478)x+85=127(479)x+4=16(480)5.8x=11.6(481)19x+5×3.7=37.5(482)131+4x=263(483)15x+11x+1.5=118.5(484)11x=143(485)2(2.5x+2)=19(486)(6x-22)÷37=2(487)x÷3=0.8(488)55x+15=180(489)7x-3x=44(490)3x+2×91=281(491)7.6x+0.9x-3.7=81.3(492)5.1+x=5.7(493)(2.8x-7.6)÷3=9.6(494)18.4-0.2x=13.2(495)3x÷18=0.6(496)4(0.4x-2.6)=31.2(497)13x-10x=21(498)4.8-x=1.4(499)35x-16x+0.8=52.1(500)15x-48×3=36(501)13x+14x-42=201(502)21(4.3x-6.3)=48.3(503)1.1x-1.6=16(504)26x÷52=2(505)17x-6×0.5=10.6(506)(7x+15)÷13=6(507)132÷x=22(508)28+7x=168(509)65-x=36(510)12x=4.8(511)18x+13x=186(512)18.5+6x=28.1(513)16.3-5x=9.8(514)x÷9=9(515)59x+18=195(516)(5.3x-7.5)÷11=5.1(517)2(0.4x+2)=23.2(518)6-0.2x=4.6(519)5(0.4x-2.5)=13.5(520)0.3x-0.4×9=9.6(521)9.7+7x=23(522)x+6=84(523)x÷17=5(524)(1.1x-1.7)÷4=2.6(525)34x+13×0.5=20.1(526)1.1x+3=16.2(527)18x÷9=6(528)0.5x-2.8×3=5.1(529)16-20x=4(530)27x+1.2=14.7(531)93-x=63(532)x+2=97(533)23x+6×2=104(534)3(5x+4)=87(535)6(0.4x-0.5)=35.4(536)15x-8x+30=100(537)5x+3.6=13.1(538)5.5x-1.3x-2.1=14.7(539)4x-39=17(540)12.9+39x=28.5参考答案(1)x=21(2)x=32(3)x=7(4)x=3(5)x=114(6)x=6(7)x=8.5(8)x=10(9)x=3.5(10)x=2(11)x=26(12)x=5(13)x=18(14)x=0.3(15)x=25(16)x=0.8(17)x=5.9(18)x=8(19)x=13(20)x=2(21)x=10.8(22)x=11(23)x=6(24)x=15(25)x=5.4(26)x=12.8(27)x=39(28)x=5(29)x=0.8(30)x=6(31)x=2(32)x=22(33)x=8.2(34)x=3(35)x=4(36)x=19(37)x=96(38)x=160(39)x=16(40)x=9(41)x=9.2(42)x=97(43)x=4(44)x=13(45)x=0.9(46)x=5(47)x=2(48)x=4(49)x=68(50)x=16(51)x=3(52)x=8(53)x=4(54)x=2(55)x=5.3(56)x=8.1(57)x=2(58)x=88(59)x=7.4(60)x=5(61)x=23(62)x=7.2(63)x=14(64)x=17(65)x=3(66)x=0.5(67)x=7(68)x=0.4(69)x=8(70)x=0.6(71)x=1(72)x=7(73)x=2.5(74)x=16(75)x=5(76)x=13(77)x=3(78)x=11(79)x=12(80)x=0.5(81)x=18(82)x=65(83)x=8.6(84)x=0.5(85)x=4(86)x=91(87)x=11(88)x=0.2(89)x=0.2(90)x=4(91)x=0.7(92)x=8(93)x=9(94)x=3(95)x=66(96)x=0.5(97)x=0.3(98)x=7(99)x=13(100)x=4(101)x=135(102)x=25(103)x=32(104)x=16(105)x=5(106)x=8(107)x=0.6(108)x=0.5(109)x=5(110)x=20(111)x=40(112)x=36(113)x=19(114)x=73(115)x=49(116)x=22(117)x=14(118)x=0.4(119)x=2(120)x=8(121)x=15(122)x=12(123)x=6(124)x=26(125)x=5.8(126)x=1.5(127)x=0.4(128)x=2(129)x=1.6(130)x=14(131)x=5(132)x=5(133)x=14(134)x=8.3(135)x=0.5(136)x=4(137)x=0.4(138)x=2.7(139)x=4(140)x=12(141)x=16(142)x=3(143)x=7(144)x=35(145)x=60(146)x=28(147)x=9.9(148)x=0.4(149)x=6(150)x=5(151)x=2(152)x=52(153)x=84(154)x=10(155)x=12(156)x=20(157)x=2.4(158)x=12(159)x=9(160)x=12(161)x=16(162)x=44(163)x=184(164)x=14.4(165)x=17(166)x=5(167)x=0.5(168)x=2(169)x=59(170)x=11(171)x=8(172)x=7(173)x=0.2(174)x=1(175)x=25(176)x=25(177)x=4.9(178)x=0.3(179)x=1.9(180)x=13(181)x=2.1(182)x=0.4(183)x=9(184)x=7(185)x=3(186)x=1.9(187)x=54(188)x=10(189)x=19(190)x=11(191)x=4(192)x=6.9(193)x=3(194)x=4(195)x=3(196)x=1.8(197)x=8(198)x=4(199)x=15(200)x=0.3(201)x=1.1(202)x=25(203)x=15(204)x=5(205)x=27(206)x=3(207)x=30(208)x=6(209)x=2(210)x=9(211)x=27(212)x=5.4(213)x=7(214)x=16(215)x=95(216)x=1(217)x=4(218)x=45(219)x=66(220)x=78(221)x=11(222)x=23(223)x=2.1(224)x=54(225)x=14(226)x=6.2(227)x=5(228)x=8(229)x=6(230)x=4.8(231)x=2(232)x=63(233)x=14(234)x=16(235)x=18(236)x=4.7(237)x=0.6(238)x=15(239)x=35(240)x=48(241)x=16(242)x=6(243)x=2.3(244)x=10(245)x=3(246)x=48(247)x=0.5(248)x=11(249)x=4(250)x=7(251)x=21(252)x=16(253)x=3(254)x=0.7(255)x=50(256)x=2(257)x=6.8(258)x=3.2(259)x=0.9(260)x=12(261)x=0.3(262)x=11(263)x=0.9(264)x=16(265)x=1.5(266)x=21(267)x=9(268)x=1.1(269)x=3(270)x=9(271)x=2(272)x=0.3(273)x=13(274)x=2(275)x=6(276)x=14(277)x=50(278)x=4(279)x=10(280)x=7(281)x=1.3(282)x=24(283)x=4(284)x=8(285)x=2(286)x=2(287)x=28(288)x=8(289)x=7.4(290)x=8(291)x=3(292)x=48(293)x=12(294)x=0.7(295)x=6(296)x=2.4(297)x=9.6(298)x=13(299)x=15(300)x=0.5(301)x=9(302)x=2(303)x=44(304)x=14(305)x=6(306)x=2(307)x=0.2(308)x=70(309)x=9(310)x=6.2(311)x=42(312)x=21(313)x=5(314)x=6(315)x=3(316)x=32(317)x=35(318)x=1.3(319)x=0.2(320)x=6(321)x=1.4(322)x=2(323)x=7(324)x=16(325)x=1.4(326)x=90(327)x=1.5(328)x=5(329)x=18(330)x=17(331)x=20(332)x=3(333)x=27(334)x=3(335)x=27(336)x=4(337)x=6(338)x=41(339)x=3(340)x=3.6(341)x=7(342)x=8.9(343)x=20(344)x=0.6(345)x=38(346)x=8(347)x=3.3(348)x=3(349)x=2(350)x=48(351)x=2.5(352)x=5(353)x=3(354)x=6.6(355)x=37(356)x=2(357)x=2(358)x=8(359)x=9(360)x=20(361)x=17(362)x=2(363)x=45(364)x=96(365)x=28(366)x=0.5(367)x=3.2(368)x=1(369)x=1.9(370)x=0.2(371)x=4.7(372)x=16(373)x=10(374)x=15(375)x=2.1(376)x=13(377)x=2.7(378)x=6(379)x=5(380)x=1.1(381)x=15(382)x=1.7(383)x=35(384)x=162(385)x=45(386)x=5(387)x=7(388)x=1.7(389)x=36(390)x=13(391)x=2.2(392)x=34(393)x=90(394)x=0.6(39