五年級數(shù)學(xué)(方程)專項練習(xí)題及答案匯編(1)8.6x-5x-4.9=2.3(2)x-7.9=2(3)78+x=151(4)7.5-4x=6.3(5)17.5-0.2x=2.5(6)(8.6x-8.2)÷36=2.4(7)19.1+3x=27.8(8)2x+15x=221(9)3x=138(10)3.8x-2.2x=4.8(11)18.9-7.4x=4.1(12)x÷8=1.6(13)51-3x=36(14)34x-13=157(15)16x-6x+25=65(16)(9.6x+5.4)÷3=17.8(17)1.8x+3×4=15.6(18)5.6x+3.9x-1=141.5(19)17x=119(20)9x+13x-22=242(21)2.3x-2.5=11.3(22)4(x+4)=36(23)7(0.3x-0.9)=25.2(24)24x÷15=8(25)9x÷15=1.2(26)77+x=114(27)0.5x-1.8=1.7(28)5x-2x+38=119(29)(4.9x+5.1)÷22=0.9(30)52+x=136(31)18x-10x=48(32)4x+52x-2.3=64.9(33)3(0.6x-4.7)=14.7(34)35x-26x-1.3=23(35)4(2x+20)=200(36)12x-7x-32=38(37)41+x=102(38)(11x-48)÷4=10(39)5x-2x=57(40)1.9x=3.8(41)164-13x=138(42)0.9x+1.4×11=17.2(43)2x-3×31=69(44)x-9=40(45)7x+2x+0.2=117.2(46)x÷21=4(47)2x-3×0.4=4.2(48)2x÷6=1.7(49)4x=84(50)7x+19x=208(51)61x+9x-0.2=69.8(52)7x+5.2=15(53)9.1x+0.3x-2.1=35.5(54)15x-11x-25=27(55)17x+3x-31=89(56)13.6-0.5x=8.6(57)0.2x-5.8=12.4(58)48x-28x+3.6=43.6(59)64+46x=156(60)x÷2=4(61)5.1x+2.4x-1.9=65.6(62)4x+8×0.2=7.6(63)1.4x+2.7×3=13.7(64)7.2+24x=12(65)195-14x=125(66)14x-4.2=5.6(67)2x÷18=1(68)34x÷85=0.2(69)2x÷14=5(70)x+5.5=8.2(71)61-8x=37(72)17x+8x+27=77(73)5x+3x+13=61(74)9x-18×4=18(75)0.4x-1.5=10.1(76)9x+49x-3.6=71.8(77)87x-3x+0.7=67.9(78)2(0.2x-2.6)=10(79)7.4x-0.8x+1.2=14.4(80)0.3x-4.4=15.4(81)126÷x=9(82)x÷14=14(83)40x-1.5=6.5(84)8(x-10)=112(85)(x+14)÷17=2(86)1.2x-0.4x-3.3=19.1(87)2x+13x-27=33(88)9x-2x=105(89)7x-4.7=3(90)1.2x+1.3=18.1(91)(6x+38)÷40=2(92)2(0.6x+7.6)=47.6(93)3.4÷x=1.7(94)3.7x-2.1x=27.2(95)4.3x-0.3x=28(96)8x+12×2=144(97)7x+10×9=167(98)6.9x-2.5x-4.9=21.5(99)8.6-x=4.1(100)8x÷24=6(101)3x+6×8=162(102)1.7x+5.8=16(103)2x=2.2(104)31x-6x-3.6=71.4(105)8.2x+1.7=18.1(106)x÷13=0.8(107)15x-2x+26=169(108)3(5.1x-9.7)=32.1(109)18.6+1.2x=29.4(110)1.2x+4=7.6(111)0.2x+2.9x+0.5=43.9(112)(11x+14)÷3=12(113)6x+75x-1=104.3(114)7x-3x+21=41(115)35x÷10=0.7(116)4.2x÷63=0.2(117)2x+7x=189(118)2.3x=9.2(119)29+4x=53(120)9x=18(121)19x-10x+1.9=39.7(122)2.8x=14(123)34x-31×0.4=4.6(124)8.1+1.8x=27.9(125)10.9+4.3x=28.1(126)4x-19×5=97(127)12x-3×42=30(128)2(0.4x+1.9)=6.2(129)10x-6×4=16(130)7.7x-5.7x+4.4=20.4(131)3x=165(132)17.1-48x=7.5(133)20+4x=192(134)x÷94=0.2(135)10(2x-17)=130(136)7x+38=157(137)3(4x-44)=36(138)11x+58=80(139)69-x=58(140)13+x=81(141)x-1.1=6.2(142)9.2-x=6.7(143)x+3.2=6.8(144)48x-24x-2.8=21.2(145)12x-6x=42(146)0.8x+7.4x=49.2(147)16.8-6x=7.8(148)(9x-44)÷5=38(149)10x-7x=39(150)0.7x+2.7×3=23.5(151)40+3x=97(152)0.3x+3.9=20.1(153)6x-20=106(154)x+2.5=3.9(155)x-1.8=1.7(156)4.7x+5.9x=137.8(157)12.6÷x=1.8(158)3x+3×0.9=4.5(159)34+2x=52(160)4x-22=22(161)37x+22=133(162)38x+56=132(163)168÷x=14(164)4.8x-4.4=14.8(165)(9x+24)÷3=56(166)2(0.9x+6.9)=46.2(167)3x+3×14=201(168)169-50x=19(169)(2.3x+5.5)÷29=1.3(170)15x-2x+3=68(171)10x=20(172)14x+18x=192(173)24x-6x-4.2=53.4(174)7x+14x+3.5=123.2(175)9.9x-8.5x+2.6=11(176)18-1.5x=1.5(177)3(9x+33)=153(178)1.7x-1.1x-1.9=11.9(179)11.7÷x=1.3(180)2.1x+1.5x-4.3=13.7(181)11x-8x+45=93(182)8x+7x+47=302(183)0.2x+1.3×10=17.8(184)3x+4x+3.4=143.4(185)2(15x-32)=56(186)15x+19x+2=342(187)7x-1.6x=64.8(188)x-34=57(189)4x+12x=176(190)4+x=37(191)11x-8x-27=12(192)4+x=8.8(193)67-x=35(194)15x-2×0.7=12.1(195)25x+33x-1.5=56.5(196)6(3.4x-0.7)=36.6(197)(4.3x-6.8)÷6=4.6(198)3(1.8x+4.3)=34.5(199)x+7.4=13.9(200)0.7x÷6=2.8(201)68÷x=17(202)13+0.2x=20.6(203)15x+41=221(204)19÷x=0.5(205)5x-42×0.2=7.1(206)(6x+36)÷12=15(207)194+51x=347(208)7.7x+7.6x=122.4(209)x-3=6(210)36x-3.4=7.4(211)9x+8×0.3=14.1(212)141-5x=16(213)4x+2.9=14.9(214)8(x+4)=56(215)x-82=12(216)15(27x-44)=150(217)5x÷60=2(218)x-10=84(219)3x-1.9x-0.4=15(220)x-2=6.4(221)7-x=3.1(222)3.4-x=1.9(223)18.3+6x=30.3(224)13.4-34x=3.2(225)2.1x-0.2x=87.4(226)6x+4x=210(227)5x=65(228)0.4x-1.4=5.4(229)4.2÷x=0.7(230)10x+9×4=66(231)46x-4.4=4.8(232)(8x-27)÷3=39(233)23x-12x-4.3=22.1(234)16x-7x=54(235)0.5x-0.8×5=4(236)1.9x+0.2×42=21.7(237)(7x-47)÷29=2(238)8x+4x+11=239(239)55x+20x-2.4=87.6(240)88÷x=44(241)8.3-x=2.1(242)5x+18×0.8=24.4(243)3(26x-45)=177(244)19x+7x-13=65(245)(8.6x+3.1)÷33=2.7(246)4x-2.5x+1.4=20.9(247)3x=159(248)9x+33×2=210(249)0.5x-2.7=4.3(250)0.3x-1.2×7=2.7(251)44x+5.2=14(252)6x-3x-46=44(253)6(2x+5)=114(254)5.8x+6.5x-1.8=158.1(255)x÷32=4(256)x-0.8=5.5(257)x÷11=9(258)x+43=115(259)28x÷21=4(260)4(7x+27)=164(261)156-2x=56(262)11.2-16x=4.8(263)16x-6x-5=45(264)24x÷56=3(265)99-x=45(266)0.4x÷10=1.8(267)x-54=17(268)11.1+5.8x=28.5(269)189-52x=33(270)x+5.4=8.4(271)14x+15x=348(272)2(5.4x+5.4)=43.2(273)2(2x+45)=114(274)66x+29x-1.1=84.4(275)9.5+x=18.8(276)10x+4.7=8.7(277)6x-45=129(278)0.7x=14.7(279)1.4x+4.6×2=27.4(280)53x-22x-1.4=51.3(281)(18x-44)÷2=104(282)97-x=56(283)0.7x=9.8(284)83-x=80(285)183-3x=18(286)x÷6=2.2(287)18÷x=3(288)5x÷10=1.5(289)79-x=77(290)20x+26x+4.5=78.1(291)3.6x-0.8x+1.1=15.1(292)x+1.6=9.4(293)5x+2.4=17.4(294)105÷x=21(295)18x-12×0.8=6.6(296)4(0.5x-4.6)=39.6(297)16x+4x-35=185(298)2x-32×5=12(299)8x-4x+2=58(300)7x-4x-10=62(301)14x÷21=8(302)(8.4x+5.6)÷28=3.5(303)2x-58=70(304)9.6-0.6x=1.8(305)x+93=177(306)26+x=101(307)5.4x+1.9x+1.9=126(308)14x-23=145(309)x-0.9=2.1(310)0.8÷x=0.4(311)x+80=158(312)x-1.5=1(313)54x-24x+0.2=51.2(314)51x=102(315)2.1x+3.9x-3.3=50.7(316)10.6+33x=17.2(317)2.2x-0.2×21=13.4(318)12x-2×36=84(319)2+4x=8(320)x÷48=0.3(321)79x-7x+3.9=61.5(322)4.3+x=12.2(323)18x=16.2(324)16x-4x-40=20(325)26x+9×20=336(326)x+41=135(327)9.1x-3.8x-4=11.9(328)x÷27=6(329)6.2x+7.4x=81.6(330)2.1x-0.3×25=9.3(331)9x-7x-22=14(332)5x=16.5(333)12x+7×2=24.8(334)21x+20x-4.8=134.6(335)6.9x+8.6x+4.6=144.1(336)17x-15x+17=29(337)58x-19=97(338)3x+4×48=204(339)3.4x-1.5x+1.9=28.5(340)55x-9x+1.6=75.2(341)2x-3.9=15.3(342)1.7x-0.2x=48(343)4(2x+23)=116(344)2(0.5x-6.3)=7.4(345)7.9+x=9.6(346)17x-10x=63(347)9x+5x=28(348)95-x=24(349)18.3-3x=2.1(350)0.2x÷11=0.6(351)3x+0.2x+2.2=82.2(352)19x+4×2.1=12.2(353)2.1x=12.6(354)11x+14x-24=276(355)18-0.5x=7(356)0.5x-1.9=10.1(357)5.1+x=9.7(358)8.2-x=5.4(359)x+47=70(360)9x÷4=1.8(361)19.6÷x=0.7(362)99x+36x+2.5=29.5(363)45-x=39(364)58+29x=232(365)2.4x+5=21.8(366)0.2x-0.2×12=1.4(367)1.9x+1.4x=102.3(368)(13x-45)÷16=11(369)6.1x=18.3(370)3(2.9x-3.6)=15.3(371)3x+9x+10=106(372)3x+3.6=17.1(373)11.3+2x=14.1(374)9x+19×0.8=30.5(375)67-x=21(376)3x-26×7=10(377)x+1.5=6(378)19x-5x+3.4=24.4(379)3.2x÷8=2(380)66÷x=33(381)0.2x=3(382)0.2x÷5=1.4(383)5(x-6)=110(384)(0.4x-1.5)÷3=1.9(385)7x+4x+33=220(386)47x-3×1.8=8.7(387)(0.6x+4.8)÷12=0.6(388)x+67=166(389)3x+3.4=17.5(390)(1.8x+2.4)÷4=6.9(391)87x-79x-1.9=2.9(392)75x=15(393)(8.2x-1.6)÷2=7.4(394)6.1x-1.6x-4.5=22.5(395)9.1-x=3.4(396)4.5x+4.1x-2.7=66.1(397)18x+4x+33=187(398)129+4x=165(399)11x+53=185(400)19x-2x=170(401)x+8.2=9.9(402)8.2+2x=9.4(403)7x+4.9=11.2(404)5(2x+18)=110(405)0.3x+1.4=5(406)12x+11x+30=168(407)0.6x÷12=1.5(408)0.2x+1.2×5=9.2(409)6x+54=150(410)3x+74x+0.9=16.3(411)1.2x+2.6x+2.9=139.7(412)19.2-3.1x=9.9(413)36x=14.4(414)21x+5.2=15.7(415)0.4x-0.5×2=13.8(416)15x-13x+18=40(417)(9x-0.4)÷2=31.3(418)80x÷20=0.8(419)8.6+x=9.2(420)75x-15x+2.6=20.6(421)2(6x-48)=36(422)5.2x÷39=0.4(423)x-67=31(424)7x-2×1.5=5.4(425)3(6x-47)=165(426)18.9-0.2x=11.5(427)9x+5x-33=121(428)19.9-0.6x=15.1(429)7x=1.4(430)82x-53x-4.3=27.6(431)7.4x+6.5x=97.3(432)x-27=58(433)0.4x-2.1×4=7.6(434)x-28=48(435)2x=0.8(436)1.5x-0.4×21=5.1(437)69x+83x+2.2=169.4(438)17x+3x+4=96(439)0.7x+5.8x=58.5(440)(2.8x-2)÷10=2.6(441)71x-44x+0.2=38(442)7.4x+8.2x=140.4(443)86x-49=123(444)(3.9x+5.5)÷4=16(445)x÷24=0.2(446)18x-2x-24=40(447)5(0.4x+6.8)=46(448)3.8+x=11.1(449)3.1+x=9.3(450)x÷29=3(451)(9x-37)÷7=14(452)33x+20x+0.8=128(453)3(3.1x+5.6)=35.4(454)8.7+2.8x=17.1(455)16x+17x-27=72(456)3(0.4x+4.6)=21(457)x+94=114(458)100÷x=10(459)2x-19=103(460)x÷10=0.4(461)8-3x=3.2(462)3x=4.5(463)(5x-3.7)÷9=5.7(464)6x+8x=350(465)3.7x-0.8x+0.6=73.1(466)144÷x=9(467)17.4-26x=1.8(468)(5x-28)÷46=2(469)x+2.6=6.3(470)2x=1.2(471)7x+20=48(472)10x+13×0.6=22.8(473)4.3-x=3.8(474)5x+0.3x+0.6=106.6(475)5x+3x-47=225(476)x+50=55(477)48+x=83(478)11x+21x+2=133.2(479)1.2x-0.9x-4.5=4.8(480)x÷26=4(481)8.9x+1.5x-4.5=37.1(482)2x÷16=0.8(483)2.6x-0.3x-2.3=27.6(484)3.2x+5.7x-2.9=68.3(485)0.7x=18.9(486)2.5x-0.3x=15.4(487)3(2.1x+5.3)=34.8(488)13.6+2.4x=30.4(489)2x+4×20=100(490)194+50x=394(491)36x-11x-0.4=57.1(492)17x-8x=18(493)38x+16x-1.9=57.5(494)20x÷4=15(495)23x-5=1.9(496)2x+8×2.5=25(497)(7x+8)÷3=68(498)12.8÷x=3.2(499)x-41=57(500)11(0.8x-9.1)=23.1(501)(4.4x+9)÷7=12.6(502)(x+6)÷4=3(503)34x+18x+1.9=64.3(504)6x÷15=2(505)91x+1.6=19.8(506)7.8x÷52=0.3(507)2x-4.3=4.9(508)0.8x+5.1x=23.6(509)x÷8=12(510)0.5x+2.2=19.2(511)5x-4.4=14.1(512)8.8x-2.7x+2.1=69.2(513)10.3-3x=6.7(514)4x-31×0.5=4.1(515)1.6÷x=0.8(516)3x-33×3=33(517)0.5x+2.3×8=34.4(518)8.6+5x=18.6(519)(3x+31)÷2=50(520)3.8+x=5.5(521)6.4+3.7x=21.2(522)6x+15=63(523)(4x+20)÷4=13(524)x-2.7=7.1(525)1.2x-1.6×2=7.6(526)(6.2x-7.6)÷11=1(527)4x-1.8x=28.6(528)12.7+1.3x=21.8(529)2.6+37x=13.7(530)0.5x+3.5x+4.8=32.8(531)(14x-18)÷20=4(532)x+91=118(533)x÷24=2(534)5.8-x=4.2(535)(3.9x-8.7)÷11=2.4(536)9x-12×0.5=6.6(537)6x-2.5x+2.5=58.5(538)x÷3=4.1(539)8.6x-0.5x=56.7(540)74+x=87參考答案(1)x=2(2)x=9.9(3)x=73(4)x=0.3(5)x=75(6)x=11(7)x=2.9(8)x=13(9)x=46(10)x=3(11)x=2(12)x=12.8(13)x=5(14)x=5(15)x=4(16)x=5(17)x=2(18)x=15(19)x=7(20)x=12(21)x=6(22)x=5(23)x=15(24)x=5(25)x=2(26)x=37(27)x=7(28)x=27(29)x=3(30)x=84(31)x=6(32)x=1.2(33)x=16(34)x=2.7(35)x=15(36)x=14(37)x=61(38)x=8(39)x=19(40)x=2(41)x=2(42)x=2(43)x=81(44)x=49(45)x=13(46)x=84(47)x=2.7(48)x=5.1(49)x=21(50)x=8(51)x=1(52)x=1.4(53)x=4(54)x=13(55)x=6(56)x=10(57)x=91(58)x=2(59)x=2(60)x=8(61)x=9(62)x=1.5(63)x=4(64)x=0.2(65)x=5(66)x=0.7(67)x=9(68)x=0.5(69)x=35(70)x=2.7(71)x=3(72)x=2(73)x=6(74)x=10(75)x=29(76)x=1.3(77)x=0.8(78)x=38(79)x=2(80)x=66(81)x=14(82)x=196(83)x=0.2(84)x=24(85)x=20(86)x=28(87)x=4(88)x=15(89)x=1.1(90)x=14(91)x=7(92)x=27(93)x=2(94)x=17(95)x=7(96)x=15(97)x=11(98)x=6(99)x=4.5(100)x=18(101)x=38(102)x=6(103)x=1.1(104)x=3(105)x=2(106)x=10.4(107)x=11(108)x=4(109)x=9(110)x=3(111)x=14(112)x=2(113)x=1.3(114)x=5(115)x=0.2(116)x=3(117)x=21(118)x=4(119)x=6(120)x=2(121)x=4.2(122)x=5(123)x=0.5(124)x=11(125)x=4(126)x=48(127)x=13(128)x=3(129)x=4(130)x=8(131)x=55(132)x=0.2(133)x=43(134)x=18.8(135)x=15(136)x=17(137)x=14(138)x=2(139)x=11(140)x=68(141)x=7.3(142)x=2.5(143)x=3.6(144)x=1(145)x=7(146)x=6(147)x=1.5(148)x=26(149)x=13(150)x=22(151)x=19(152)x=54(153)x=21(154)x=1.4(155)x=3.5(156)x=13(157)x=7(158)x=0.6(159)x=9(160)x=11(161)x=3(162)x=2(163)x=12(164)x=4(165)x=16(166)x=18(167)x=53(168)x=3(169)x=14(170)x=5(171)x=2(172)x=6(173)x=3.2(174)x=5.7(175)x=6(176)x=11(177)x=2(178)x=23(179)x=9(180)x=5(181)x=16(182)x=17(183)x=24(184)x=20(185)x=4(186)x=10(187)x=12(188)x=91(189)x=11(190)x=33(191)x=13(192)x=4.8(193)x=32(194)x=0.9(195)x=1(196)x=2(197)x=8(198)x=4(199)x=6.5(200)x=24(201)x=4(202)x=38(203)x=12(204)x=38(205)x=3.1(206)x=24(207)x=3(208)x=8(209)x=9(210)x=0.3(211)x=1.3(212)x=25(213)x=3(214)x=3(215)x=94(216)x=2(217)x=24(218)x=94(219)x=14(220)x=8.4(221)x=3.9(222)x=1.5(223)x=2(224)x=0.3(225)x=46(226)x=21(227)x=13(228)x=17(229)x=6(230)x=3(231)x=0.2(232)x=18(233)x=2.4(234)x=6(235)x=16(236)x=7(237)x=15(238)x=19(239)x=1.2(240)x=2(241)x=6.2(242)x=2(243)x=4(244)x=3(245)x=10(246)x=13(247)x=53(248)x=16(249)x=14(250)x=37(251)x=0.2(252)x=30(253)x=7(254)x=13(255)x=128(256)x=6.3(257)x=99(258)x=72(259)x=3(260)x=2(261)x=50(262)x=0.4(263)x=5(264)x=7(265)x=54(266)x=45(267)x=71(268)x=3(269)x=3(270)x=3(271)x=12(272)x=3(273)x=6(274)x=0.9(275)x=9.3(276)x=0.4(277)x=29(278)x=21(279)x=13(280)x=1.7(281)x=14(282)x=41(283)x=14(284)x=3(285)x=55(286)x=13.2(287)x=6(288)x=3(289)x=2(290)x=1.6(291)x=5(292)x=7.8(293)x=3(294)x=5(295)x=0.9(296)x=29(297)x=11(298)x=86(299)x=14(300)x=24(301)x=12(302)x=11(303)x=64(304)x=13(305)x=84(306)x=75(307)x=17(308)x=12(309)x=3(310)x=2(311)x=78(312)x=2.5(313)x=1.7(314)x=2(315)x=9(316)x=0.2(317)x=8(318)x=13(319)x=1.5(320)x=14.4(321)x=0.8(322)x=7.9(323)x=0.9(324)x=5(325)x=6(326)x=94(327)x=3(328)x=162(329)x=6(330)x=8(331)x=18(332)x=3.3(333)x=0.9(334)x=3.4(335)x=9(336)x=6(337)x=2(338)x=4(339)x=14(340)x=1.6(341)x=9.6(342)x=32(343)x=3(344)x=20(345)x=1.7(346)x=9(347)x=2(348)x=71(349)x=5.4(350)x=33(351)x=25(352)x=0.2(353)x=6(354)x=12(355)x=22(356)x=24(357)x=4.6(358)x=2.8(359)x=23(360)x=0.8(361)x=28(362)x=0.2(363)x=6(364)x=6(365)x=7(366)x=19(367)x=31(368)x=17(369)x=3(370)x=3(371)x=8(372)x=4.5(373)x=1.4(374)x=1.7(375)x=46(376)x=64(377)x=4.5(378)x=1.5(379)x=5(380)x=2(381)x=15(382)x=35(383)x=28(384)x=18(385)x=17(386)x=0.3(387)x=4(388)x=99(389)x=4.7(390)x=14(391)x=0.6(392)x=0.2(393)x=2(394)x=6(395