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)2+7x=14.6(2)x÷9=1.3(3)9x-5x+45=129(4)3.9x-3.1x+2.2=12.6(5)182-78x=26(6)45-x=36(7)124-2x=12(8)42x-6×1.1=1.8(9)83-x=27(10)10x-2×61=48(11)12x÷26=6(12)44x+49=225(13)12x-2x-4=146(14)12x÷56=0.3(15)9x+19×0.5=11.3(16)1.5x=19.5(17)(5x-48)÷21=2(18)2x÷5=2.8(19)4x+2x-40=74(20)4.5x+5.8x+1=165.8(21)2x+5.6=17.4(22)0.3x+3.7=19(23)5.9-x=3.2(24)2.5x=17.5(25)5.5÷x=1.1(26)125÷x=25(27)88x÷11=1.6(28)52x-21x+0.3=59.2(29)x+3.1=10.8(30)5x-48=122(31)60x+87x+4.1=165.8(32)27x-8×6=114(33)21x-10×0.4=12.8(34)96÷x=6(35)13x-8x=25(36)32x+47x-4.9=18.8(37)x+38=93(38)4.7x+8.7x=147.4(39)1.5x+1.9×9=23.1(40)0.8x÷32=0.5(41)1.2x+2.8x-0.6=95.4(42)(4.3x+8.1)÷26=1.8(43)0.4x-1×7=7(44)18.8+13x=33.1(45)3(3x+17)=159(46)8+x=94(47)4.1x-2.3x+3.2=10.4(48)2(8.9x-5.1)=43.2(49)6(3.1x-9.5)=17.4(50)x+55=74(51)17x-12x+0.8=25.3(52)4x+5x-16=155(53)x-5.5=1.6(54)x+77=143(55)8.1+0.4x=9.7(56)2.1x+2.2x+1.8=70.6(57)0.4x+1×9=15.4(58)x+0.8=10.1(59)8x-5x+42=63(60)x+7.9=8.1(61)7x-4x-3=42(62)9.5x-3.6x=59(63)17x-13x-10=22(64)8x÷20=0.6(65)18÷x=3.6(66)86-x=74(67)178+8x=266(68)11x+12=210(69)8x-2×1.8=6.8(70)22x=19.8(71)3.6x+8.9x+0.4=137.9(72)7.1+0.4x=26.3(73)19.4-0.9x=2.3(74)56÷x=14(75)2.9x-2.6=9(76)39x+4=15.7(77)86-x=72(78)17x-39=80(79)x+3.4=11.7(80)17x-51=85(81)51x-11x+1.4=37.4(82)129+3x=258(83)12x+23×8=376(84)2x+3.7=13.1(85)2.1x-0.3×4=17.7(86)x-7.7=1.8(87)18x÷12=0.3(88)9.8x-5x=43.2(89)28x+5x+3.4=92.5(90)(9x+2)÷4=50(91)17.9-22x=4.7(92)7x-3x+3=23(93)x-30=68(94)5.3x-3.1x-2.8=10.4(95)34x+54x-0.3=131.7(96)88÷x=22(97)22x÷77=0.2(98)x+5.7=8.7(99)69+17x=103(100)2.3+0.2x=17.5(101)x-1=1.3(102)0.3x=12.9(103)3.6x÷3=2.4(104)6x-3x-49=14(105)8.4x+5.4x+0.5=124.7(106)(2x+17)÷3=17(107)(16x+26)÷29=2(108)0.3x+5.9=11.3(109)9(7x-8.6)=48.6(110)0.8+x=5.3(111)4x-2×3.4=3.2(112)6.5-x=2.4(113)8.7+x=15.7(114)19x-10x+9=54(115)76-x=58(116)76x+59=211(117)4x+9×11=183(118)2.5x+0.2x=24.3(119)9.3-0.4x=5.7(120)2x-2×11=72(121)15x-6x+41=122(122)2x=8(123)9.3x-7.6x+0.2=5.3(124)5.5x+2.5x-1.6=14.4(125)16x+15x-11=82(126)8x+7x+38=398(127)4.7x-1.6×8=1.3(128)48+x=98(129)3(0.3x+2.1)=33.3(130)16x÷4=3.6(131)5.4x+7.8x-3.3=49.5(132)67+x=82(133)x+5.1=11.9(134)13(0.3x-2.2)=29.9(135)19+40x=139(136)19.9-0.3x=4.6(137)9.8-0.4x=4.6(138)3.1x-4.1=2.1(139)27x+12×13=345(140)6x-3x+38=92(141)0.7x=15.4(142)11x+2x=104(143)0.8x+4.1×4=30(144)7(x-26)=161(145)2x=40(146)3(7x-9)=36(147)4(24x-49)=92(148)6.5-x=3.4(149)0.6x+1.2×4=15.6(150)10.4-3x=5(151)(4.3x-1.6)÷5=10(152)9x+52x-2.9=88.6(153)7x+9x=352(154)16+6.2x=34.6(155)49x-13x+3.5=39.5(156)1.3x-0.6×5=7.4(157)3x-3×13=84(158)2x=1.8(159)80-2x=44(160)4x÷52=2(161)3.9+1.7x=19.2(162)4.1x+4.1=20.5(163)5(0.4x+5.7)=38.5(164)16x+45×2=266(165)30x-11x-4=13.1(166)9x-12×0.9=7.2(167)90-x=72(168)13x-41=11(169)x-22=24(170)x-34=59(171)19x+15x+31=337(172)3x-37=68(173)0.7x-2.4=3.9(174)0.2x÷7=1(175)11.3+4x=24.1(176)30x+5=23(177)8x-3x-3.8=28.7(178)18x-13x=25(179)7.7÷x=0.7(180)5.9x-0.7x=46.8(181)96-x=49(182)3x+8×1.2=13.2(183)18x-11x-4.1=16.9(184)x-11=16(185)7x-3x-1.3=13.5(186)36x+57x-2.1=90.9(187)x÷3=25(188)(4x+9.1)÷31=2.1(189)168÷x=4(190)78x=15.6(191)1.3x÷6=2.6(192)4.7+6x=8.9(193)5.2x-4.4x=2.4(194)7.6+x=16.1(195)7.2+x=9.8(196)9x=9.9(197)(3x+36)÷45=1(198)3.9+0.4x=4.7(199)10x+26=106(200)12x÷60=2(201)53+38x=129(202)(7.4x-5.8)÷7=10.8(203)x÷18=0.9(204)6x-14×2=92(205)(4x-36)÷4=13(206)x-3=55(207)17x+14=82(208)4x÷32=3(209)96x=192(210)3.2x=6.4(211)76÷x=4(212)22x-6×2.2=4.4(213)126-2x=56(214)12x-3x+46=118(215)1.3x-0.6x+2.3=21.9(216)5x+7x=156(217)5(6x+11)=175(218)2x+4.1=7.9(219)10-7x=8.6(220)x÷21=3(221)80+16x=224(222)104+79x=262(223)(17x-49)÷5=48(224)44x=17.6(225)x÷32=6(226)4.2x+1.1×9=18.3(227)2(2x-4)=132(228)1.7x=13.6(229)56-x=12(230)3(3.2x+0.9)=41.1(231)5x+6x=341(232)(16x-39)÷35=3(233)67x+8x+4.3=109.3(234)x-0.8=2.1(235)6.1-x=5.1(236)3.5-x=3.3(237)119-8x=87(238)5x+19x=144(239)3x=108(240)1.8x+0.7x-1.5=98.5(241)35x-24x-4=5.9(242)1.4x+0.6×15=27.2(243)25x÷50=4(244)0.7x-0.3×11=15.6(245)2.6x-2.2x=10(246)42x+56x+1.7=129.1(247)13+4.3x=21.6(248)69+x=72(249)13x+18x+39=318(250)18+x=42(251)x÷5=0.7(252)146-16x=82(253)5.8x-2.7x-4.8=35.5(254)44x-6x+0.5=38.5(255)6.9x+2.5x=84.6(256)(8.4x-6)÷3=28.8(257)17x-4.2=12.8(258)4x-15×6=102(259)8.8x+0.6x-2.8=16(260)1.9x-1.4×11=1.7(261)(4.6x+2.4)÷32=1.8(262)11x-1=2.3(263)10.3+24x=17.5(264)(18x-44)÷4=61(265)18.4-6x=10(266)9.4÷x=4.7(267)x÷3=0.5(268)10x-4x+25=115(269)53x+31x+2.2=94.6(270)8x-5x=18(271)35x+10x+0.6=50.1(272)12.5+3x=29(273)36x-26x+4=20(274)18.6÷x=0.6(275)9x=11.7(276)0.9x+4.6=23.5(277)x+49=140(278)4x=16(279)6x-17×0.5=5.3(280)x÷53=2(281)5.2-x=4.7(282)10x÷18=0.5(283)1.8x÷5=3.6(284)15x+24=114(285)14x-4x=30(286)9x-3×1.2=15.3(287)15(5.7x-8.5)=43.5(288)(4x+8.4)÷6=7.4(289)17x-15x+22=38(290)61x-44x-3.1=8.8(291)1.9x-5.1=10.1(292)4x=124(293)5x+77x+3.4=85.4(294)12x+7x=209(295)5x+6×14=204(296)94+10x=174(297)18x+34×5=206(298)11x+16x+5=113(299)6x=18(300)13x-6x-3.8=2.5(301)128÷x=4(302)16.8+57x=28.2(303)128-16x=32(304)x+64=67(305)4x-2x=90(306)93-x=38(307)91x÷26=7(308)5.6+x=6.3(309)2x+10x=228(310)50x+17=217(311)x-2=7.9(312)3+x=11.8(313)x-0.8=4.6(314)23x+19×0.7=22.5(315)11.6-0.8x=5.2(316)x÷18=3(317)11x+22×6=154(318)12+3x=162(319)2.9x+7.5x-1.4=71.4(320)1.6x+1.3x=52.2(321)2.8x+0.6×31=32.6(322)19x+3×1=18.2(323)14(2x-34)=196(324)7.5x+1.5x=72(325)7.2x-1.3x=59(326)3.1x-2.5x+4.9=20.5(327)x+90=179(328)27x+13x+2.1=78.1(329)x-47=37(330)3x+2x-15=165(331)7(3x+7)=175(332)68+x=151(333)(14x+15)÷3=75(334)2.1x-1x-1.4=3(335)8x-4.5=5.1(336)3.3x-1.4x-3.7=3.9(337)8x-3.3=9.5(338)3x-4×40=38(339)x+45=66(340)(2x+37)÷15=5(341)(4.7x+8.1)÷7=2.5(342)(6x-36)÷6=8(343)4x+2x+16=166(344)x+9.9=16(345)24÷x=6(346)8.3+0.7x=22.3(347)13x-4x=54(348)(3.4x+4)÷6=6.9(349)x-5.4=4.3(350)0.9x-1.6=12.8(351)x+2=50(352)9.9÷x=0.3(353)7x+14x-28=161(354)x-6=2.6(355)(1.5x-8.2)÷2=9.4(356)(9x-30)÷14=3(357)(16x-8)÷14=4(358)2x+46=50(359)5.6x+0.8x+4.7=100.7(360)7.4x+6.7x+4.2=88.8(361)48x÷16=1.2(362)11x-5x-2=10(363)4(0.3x+5.5)=41.2(364)(6x+8)÷38=4(365)2(x+32)=88(366)x÷9=1.4(367)(4.7x-2.9)÷13=5.2(368)9.7x-5.3x-1.2=7.6(369)1.7x-0.8×7=1.2(370)(5.9x-0.7)÷6=10.7(371)15x-11x=28(372)(9x-6.4)÷2=14.8(373)4x-23=97(374)19.4-2x=12.6(375)2(1.5x+1.5)=39(376)42x+60x-0.3=40.5(377)(7x+3)÷34=4(378)9x+8x=102(379)3x÷9=16(380)7.2x-3.9x+0.8=43.7(381)x÷87=0.2(382)2x-3.6=9.6(383)(1.1x+2.8)÷36=0.2(384)4x-5×1.6=11.6(385)x-5=12(386)18x+44=224(387)16.9-6x=9.1(388)7.1-2.1x=2.9(389)18(3.4x-5.4)=25.2(390)9.3x-2.6x+1.6=21.7(391)5x+3x=96(392)6x-0.7x-1.4=41(393)0.8x+5.7=15.3(394)6.8x-0.7x-2=77.3(395)4x=9.6(396)32x+18×0.5=21.8(397)13x=117(398)10.2÷x=0.6(399)9.3+0.5x=14.8(400)(2x+3)÷10=1.7(401)4x+4.2=21.8(402)(6x+42)÷28=6(403)x÷69=0.2(404)9.3x+8.2x+4.7=57.2(405)28x-2×38=64(406)2x+2.8=10.8(407)20x-4x-3.7=58.7(408)0.4x-3.3=11.1(409)x÷24=3(410)14x+16x-40=80(411)11x+12x-2=159(412)15.8÷x=0.2(413)4x+6×1.4=12(414)3x+5x+26=282(415)x+1.9=4.4(416)4(5x+15)=180(417)x÷14=0.4(418)19.9-18x=3.7(419)10x+2×4.7=15.4(420)17x+36×3=159(421)12.2-5.3x=1.6(422)6.2x-5x-3.8=13(423)9x+19x-3=81(424)9.9+x=10.9(425)3(2x+20)=180(426)51+x=80(427)4x-1.1=15.3(428)18x-11x=63(429)7.6x+6.1x-3.4=37.7(430)184-2x=180(431)x-45=37(432)25x+2=7(433)x+0.6=1.9(434)x÷2=3.2(435)56+x=72(436)x÷14=14(437)6x+5x-38=116(438)3(0.6x+6.4)=48(439)(8.9x-4.3)÷5=11.6(440)16(0.2x-7.2)=32(441)42x-12x+1.3=58.3(442)4(2x-20)=104(443)2x+1.1=5.3(444)1.4x÷2=3.5(445)5x÷75=2(446)89x-4.7=13.1(447)2.2+x=10.5(448)49x÷7=28(449)18x=126(450)2(x+26)=58(451)1.5x-0.4×5=11.5(452)9.4-1.5x=3.4(453)0.2x+5.5x-2.9=37(454)3.3x+3.9x=158.4(455)5.5x-1.8x+0.6=45(456)3x+7x+46=96(457)x-6=84(458)4(18x+6)=168(459)2x-40=104(460)2(0.3x-2.6)=9.2(461)0.4x+2.6x=69(462)1.3x+3.5×5=30.5(463)2(5x-18)=194(464)7(0.7x+5.6)=49(465)43x-30x+4.7=33.3(466)0.2x+3.4=21.6(467)42÷x=3(468)x÷9=8(469)4.8-x=1.8(470)1.9x-1.4=10(471)44x+57x-2.1=68.6(472)7.6x+7x+1.6=176.8(473)7.3x-3.7x-1.5=34.5(474)29x+5×0.4=7.8(475)19-4x=1.4(476)88x-58x-4.6=1.4(477)4x-2x=82(478)20x÷25=0.4(479)36x-3.2=14.8(480)154-7x=119(481)16x+34x+4.9=39.9(482)3.3x÷9=2.2(483)12.2-6x=5(484)16.9+29x=34.3(485)3(19x+21)=177(486)(5.8x+7.2)÷2=35.5(487)5.3-x=1.8(488)26x-17×3=79(489)7x-4x-23=28(490)0.8x-0.4x+2=23.2(491)4.8÷x=0.6(492)2(4x-31)=162(493)5(3x-21)=120(494)3x+4×50=212(495)6x=36(496)4.7+x=7.5(497)6x-27=147(498)9.9x-1x=26.7(499)18x-9x-44=46(500)0.6x+9.8x+1.3=105.3(501)12x=7.2(502)4.8+14x=10.4(503)9.5-x=2.8(504)44+x=117(505)98x-91x+1.5=6.4(506)8.7x-4.4x=25.8(507)65x-1=12(508)1.6x-0.9×2=7.8(509)2.4x+5.9x=58.1(510)1.1x+1.6=18.1(511)x-4.8=1(512)(0.9x-8.1)÷9=0.9(513)2.5x-2.6=17.4(514)76x+57x-3.4=116.3(515)x÷63=3(516)2(1.4x+9.1)=32.2(517)x+74=163(518)33x+4×1.9=14.2(519)2(2.3x+1.7)=21.8(520)40x+27x-3.6=123.7(521)5.2x+0.3x-1.1=42.9(522)14x-6x-7=57(523)7.6x-4.4x=12.8(524)23x=115(525)2.1x+5.1=19.8(526)14x-55=85(527)0.8x+4=24(528)2(2.8x-2.1)=46.2(529)6x+17x+32=262(530)8.3x-4.1=12.5(531)1.6x+4.8x=128(532)2x+0.2×14=6.8(533)(12x-45)÷3=53(534)38x+26x-3.7=124.3(535)1.6x=4.8(536)0.8x÷92=0.2(537)2.7x=16.2(538)6.1-0.5x=1.1(539)18x-6x-22=62(540)16x+14x+38=218参考答案(1)x=1.8(2)x=11.7(3)x=21(4)x=13(5)x=2(6)x=9(7)x=56(8)x=0.2(9)x=56(10)x=17(11)x=13(12)x=4(13)x=15(14)x=1.4(15)x=0.2(16)x=13(17)x=18(18)x=7(19)x=19(20)x=16(21)x=5.9(22)x=51(23)x=2.7(24)x=7(25)x=5(26)x=5(27)x=0.2(28)x=1.9(29)x=7.7(30)x=34(31)x=1.1(32)x=6(33)x=0.8(34)x=16(35)x=5(36)x=0.3(37)x=55(38)x=11(39)x=4(40)x=20(41)x=24(42)x=9(43)x=35(44)x=1.1(45)x=12(46)x=86(47)x=4(48)x=3(49)x=4(50)x=19(51)x=4.9(52)x=19(53)x=7.1(54)x=66(55)x=4(56)x=16(57)x=16(58)x=9.3(59)x=7(60)x=0.2(61)x=15(62)x=10(63)x=8(64)x=1.5(65)x=5(66)x=12(67)x=11(68)x=18(69)x=1.3(70)x=0.9(71)x=11(72)x=48(73)x=19(74)x=4(75)x=4(76)x=0.3(77)x=14(78)x=7(79)x=8.3(80)x=8(81)x=0.9(82)x=43(83)x=16(84)x=4.7(85)x=9(86)x=9.5(87)x=0.2(88)x=9(89)x=2.7(90)x=22(91)x=0.6(92)x=5(93)x=98(94)x=6(95)x=1.5(96)x=4(97)x=0.7(98)x=3(99)x=2(100)x=76(101)x=2.3(102)x=43(103)x=2(104)x=21(105)x=9(106)x=17(107)x=2(108)x=18(109)x=2(110)x=4.5(111)x=2.5(112)x=4.1(113)x=7(114)x=5(115)x=18(116)x=2(117)x=21(118)x=9(119)x=9(120)x=47(121)x=9(122)x=4(123)x=3(124)x=2(125)x=3(126)x=24(127)x=3(128)x=50(129)x=30(130)x=0.9(131)x=4(132)x=15(133)x=6.8(134)x=15(135)x=3(136)x=51(137)x=13(138)x=2(139)x=7(140)x=18(141)x=22(142)x=8(143)x=17(144)x=49(145)x=20(146)x=3(147)x=3(148)x=3.1(149)x=18(150)x=1.8(151)x=12(152)x=1.5(153)x=22(154)x=3(155)x=1(156)x=8(157)x=41(158)x=0.9(159)x=18(160)x=26(161)x=9(162)x=4(163)x=5(164)x=11(165)x=0.9(166)x=2(167)x=18(168)x=4(169)x=46(170)x=93(171)x=9(172)x=35(173)x=9(174)x=35(175)x=3.2(176)x=0.6(177)x=6.5(178)x=5(179)x=11(180)x=9(181)x=47(182)x=1.2(183)x=3(184)x=27(185)x=3.7(186)x=1(187)x=75(188)x=14(189)x=42(190)x=0.2(191)x=12(192)x=0.7(193)x=3(194)x=8.5(195)x=2.6(196)x=1.1(197)x=3(198)x=2(199)x=8(200)x=10(201)x=2(202)x=11(203)x=16.2(204)x=20(205)x=22(206)x=58(207)x=4(208)x=24(209)x=2(210)x=2(211)x=19(212)x=0.8(213)x=35(214)x=8(215)x=28(216)x=13(217)x=4(218)x=1.9(219)x=0.2(220)x=63(221)x=9(222)x=2(223)x=17(224)x=0.4(225)x=192(226)x=2(227)x=35(228)x=8(229)x=44(230)x=4(231)x=31(232)x=9(233)x=1.4(234)x=2.9(235)x=1(236)x=0.2(237)x=4(238)x=6(239)x=36(240)x=40(241)x=0.9(242)x=13(243)x=8(244)x=27(245)x=25(246)x=1.3(247)x=2(248)x=3(249)x=9(250)x=24(251)x=3.5(252)x=4(253)x=13(254)x=1(255)x=9(256)x=11(257)x=1(258)x=48(259)x=2(260)x=9(261)x=12(262)x=0.3(263)x=0.3(264)x=16(265)x=1.4(266)x=2(267)x=1.5(268)x=15(269)x=1.1(270)x=6(271)x=1.1(272)x=5.5(273)x=1.6(274)x=31(275)x=1.3(276)x=21(277)x=91(278)x=4(279)x=2.3(280)x=106(281)x=0.5(282)x=0.9(283)x=10(284)x=6(285)x=3(286)x=2.1(287)x=2(288)x=9(289)x=8(290)x=0.7(291)x=8(292)x=31(293)x=1(294)x=11(295)x=24(296)x=8(297)x=2(298)x=4(299)x=3(300)x=0.9(301)x=32(302)x=0.2(303)x=6(304)x=3(305)x=45(306)x=55(307)x=2(308)x=0.7(309)x=19(310)x=4(311)x=9.9(312)x=8.8(313)x=5.4(314)x=0.4(315)x=8(316)x=54(317)x=2(318)x=50(319)x=7(320)x=18(321)x=5(322)x=0.8(323)x=24(324)x=8(325)x=10(326)x=26(327)x=89(328)x=1.9(329)x=84(330)x=36(331)x=6(332)x=83(333)x=15(334)x=4(335)x=1.2(336)x=4(337)x=1.6(338)x=66(339)x=21(340)x=19(341)x=2(342)x=14(343)x=25(344)x=6.1(345)x=4(346)x=20(347)x=6(348)x=11(349)x=9.7(350)x=16(351)x=48(352)x=33(353)x=9(354)x=8.6(355)x=18(356)x=8(357)x=4(358)x=2(359)x=15(360)x=6(361)x=0.4(362)x=2(363)x=16(364)x=24(365)x=12(366)x=12.6(367)x=15(368)x=2(369)x=4(370)x=11(371)x=7(372)x=4(373)x=30(374)x=3.4(375)x=12(376)x=0.4(377)x=19(378)x=6(379)x=48(380)x=13(381)x=17.4(382)x=6.6(383)x=4(384)x=4.9(385)x=17(386)x=10(387)x=1.3(388)x=2(389)x=2(390)x=3(391)x=12(392)x=8(393)x=12(3