1、整数方程专项练习 166题(有答案)(1)48x+x=98,(2) 3x7=120,(3)15x5+x=43,(4)2x+5=5x7,(5)3(x2) =25(x2) ,(6)4x3(20 x)+4=0 ,(7)4x+2(8x)=26,(8)7x5x=2+12,(9)3x+7=322x,(10)2(x+2) 3=3x5,(11) 8(x2)=2x+8,(12)3(2x+7)=45,(13)1642+83=11x,(14)56+28 x=12,(15)8X+20X=84,(16)205x=5,(17)7+2x 9=0,(18)13x95=20 ,(19)3x5=11x,(20)3x5=x+1,(
2、21)3(x5) =123,(22)3x164=119 ,(23)3(x12 )+23=35(24)7x+20=83,(25)7x+102=19,(26) 3x12=75,(27)4x3(20 x)=5x (28)4x+2(79 x)=192,(29)3204=450+5X+X,(30) (5+x)+x=982,(31)76(x2 )=52x32(32)3(x12 )=2 (x4)(33)3(x+2)=4 (x+1 ) ,(34)4(x9) =8(35)8x(5 2x)=45(36)6000x=3085,(37)29x=2958,(38)41600x=320,(39)183x=54 18,(4
3、0) (x+5)2=108(41)4x12=3 8,(42) 23+4x=71(43)3x4=30(44)915x=36(45)3x+2x=25 (46)243x=18(47)8x+25=26 (48)6x+4x=160(49)6x12=108(50)9x+5x=8.4(51)5x25=5(52)10x8x=2(53)2x+234=134(54)3x+x+6=26(55)X109=27+23(56) (569+4827)X=284(57)100(X+100)=12000(58)x72=25 5(59)38+5x=243(60)3(5x4 )=48(61)3x+24=5x12(62)910x=1
4、3,(63)36x16=18,(64)40x23x=105,(65)532x=196,(66)x62=438,(67)74x=9102,(68)x+634=856,(69)8x3x=155,(70)30(x4)=60 ,(71)7253x=12 ,(72 )x+175=366 (73 )2000x=1384 (74 )x14=250 (75 )45x=4680(76 )x39=200+34 (77 )3780x=18(78)532x=196(79)x62=48 (80)74x=2812(81)4x39=29 ,(82)13(x+5)=169 ,(83)4x6=30(84)4x2x=48 (85
5、)5x9=25(86)2y+3y+60=145(87)16x2=128(88)6x+180=330(89)13x+7=150(90)2005x=40(91)4(3x+6)=48,(92)5(x+24)=255,(93) (x12) 4=4.5,(94)45x+x=368,(95)4542x=226(96)203x=40(97) (52+34)x=5590(98)x43=508(99)x4.3=9.08 (100)488x=61(101)6x35=13(102)3812+x=54(103)34x48=268,(104)13(X+5)=169 ,(105)843x=2 ,(106)5x2x=9.6
6、,(107)25x2=100,(108)32x+61x=154,(109)3x+(25+15)=1600,(110)3x7=62(111)4x425=80(112) (x+3)2=6(113)192X=5,(114)2X+234=134,(115)9X45=135,(116)X34=200,(117)6X+7X=650,(118)14705X=800 ,(119)44+X=52 (120)91X=46,(121)X16=77,(122)X29=348,(123)35X=210,(124)X327=9,(125)8640X=320,(126)840X=840,(127)420+X5=1670,(
7、128)1224X+109=211,(129)5x21=30(130)10+9x=199(131)5(x+5)=355(132)6x+15=51,(133)3(x8 )=27,(134)x28=82,(135)14x7x=56,(136)7 29=80,(137)7+5 =42,(138)264+3x=363(139)3x+2x=65(140)2x52=8(141)534+x=3060(142)46+3x=133(143)7x4=21(144)3x+9=15(145)x12=6(146)136x=60(147)x34=2924,(148)186x=2604,(149)x+723=1280,(1
8、50)8670x=15,(151)x28=147,(152)7083x=3465,(153)3x+5=20,(154)40x+20x=120,(155)405x=30,(156)7x50=160(157)32+17x=40(158)8x4=40(159)915x=36(160)8(2X7)=5 (X+13 ) ,(161)3(x+4.5)=60 ,(162)X11=3,(163)13(X+5)=169 ,(164)4X97=342,(165)2X97=342,(166)4x56=12 ,参考答案:(1)48x+1x=98,49x=98,49x=9849,x=2;(2) 3x7=120,3x77
9、=1207,3x=840,3x3=8403,x=280,(3)15x5+x=43,16x5=43,16x5+5=43+5,16x=48,x=3(4)2x+5=5x7,2x+52x=5x72x,3x7=5,3x7+7=5+7,3x=12,3x3=123,x=4;(5)3(x2) =25(x2) ,3x6=125x,3x6+5x=125x+5x,8x6=12,8x6+6=12+6,8x=18,8x8=188,x=2.25;(6)4x3(20 x)+4=0 ,7x56=0,7x56+56=0+56,7x=56,7x7=567,x=8;(7)4x+2(8x)=26,2x+16=26,2x+1616=2
10、616,2x=10,2x2=102,x=5 (8)7x5x=2+12,2x=14,x=7;(9)3x+7=322x,3x+2x=327,5x=25,x=5(10)2(x+2) 3=3x5,2x+43=3x5,2x+1+5=3x5+5,2x+6=3x,2x+62x=3x2x,x=6(11) 8(x2)=2x+8,8x16+16=2x+8+16,8x=2x+24,8x2x=2x+242x,6x=24,6x6=246,x=4(12)3(2x+7)=45,3(2x+7) 3=453,2x+77=157,2x2=82,x=4(13)1642+83=11x,11x=165,11x11=16511,x=15
11、;(14)56+28 x=12,84x=12,84x+x=12+x,12+x=84,12+x12=8412,x=72(15)8X+20X=84,x(8+20)=84 ,28x=84,28x28=8428,x=3;(16)205x=5,205x+5x=5+5x,5+5x=20,5+5x5=205,5x=15,5x5=155,x=3(17)7+2x 9=0,7+2x9+9=0+9,7+2x=9,7+2x7=97,2x=2,2x2=22,x=1;(18)13x95=20 ,13x45=20,13x45+45=20+45,13x=65,13x13=6513,x=5(19)3x5=11x,3x5+x=1
12、1x+x,4x5+5=11+5x,4x4=164,x=4(20)3x5=x+1,3x5x=x+1x,2x5=1,2x5+5=1+5,2x=6,2x2=62,x=3;(21)3(x5) =123,3(x5)3=123 3,x5=41,x5+5=41+5,x=46(22)3x164=119 ,3x64=119,3x64+64=119+64,3x=183,3x3=1833,x=61; (23)3(x12 )+23=353x36+23=353x13=353x13+13=35+133x=48 3x3=483x=16(24)7x+20=83,7x+2020=8320,7x=63,7x7=637,x=9;(
13、25)7x+102=19,7x+5=19,7x+55=195,7x7=147,x=2;(26) 3x12=75,3x=7512,3x3=9003,x=300; (27)4x3(20 x)=5x 4x60+3x=5x7x60=5x 7x605x=5x5x2x60=02x=60x=30(28)4x+2(79 x)=192,4x+1582x=192,2x+158=192,2x+158158=192158,2x2=342,x=17(29)3204=450+5X+X,3204=450+6X,3204450=450+6X450,27546=6X6,X=459;(30) (5+x)+x=982,5+2x=4
14、9,5+2x5=4.95,2x2=442,x=22(31)76(x2 )=52x3276x152=52x3276x152+152=52x32+15276x=52x+12076x52x=52x+12052x24x=12024x24=12024x=5(32)3(x12 )=2 (x4)3x36=2x83x36+36=2x8+363x=2x+283x2x=2x+282xx=28(33)3(x+2)=4 (x+1 ) ,3x+6=4x+4,3x+63x=4x+43x,x+4=6,x+44=64,x=2(34)4(x9)=84(x9 )4=8 4x9=2x9+9=2+9x=11(35)8x(5 2x)=
15、458x5+2x=4510x5+5=45+510x10=5010x=5(36)6000x=3085,6000x+x=3085+x,3085+x=6000,3085+x3085=60003085,x=2915;(37)29x=2958,29x29=295829,x=102;(38)41600x=320,41600xx=320x,320x=41600,320x320=41600320,x=130(39)183x=54 18,183x=3,183x+3x=3+3x,3+3x=18,3+3x3=183,3x=15,3x3=153,x=5;(40) (x+5)2=108(x+5)22=108 2,x+5
16、=216,x+55=2165,x=211;(41)4x12=3 8,4x12+12=38+12,4x=36,4x5=364,x=9(42) 23+4x=7123+4x23=71234x4=484x=12(43)3x4=303x443=3043x=40(44)915x=36915x+5x36=3636+5x5x5=555x=11(45)3x+2x=25 5x=255x5=255x=5(46)243x=18243x+3x=18+3x18+3x=2418+3x18=24183x=63x3=63x=2(47)8x+25=26 8x+10=26 8x+1010=2610 8x=168x8=168x=2(
17、48)6x+4x=16010x=16010x10=16010x=16(49)6x12=1086x+1212=108+126x=1206x6=1206x=20(50)9x+5x=8.414x=8.414x14=8.414x=0.6(51)5x25=55x+2525=5+255x=305x2.5=305x=6(52)10x8x=22x=22x2=22x=1(53)2x+234=1342x+92=1342x+9292=134922x=422x2=422x=21(54)3x+x+6=264x+66=2664x=204x4=204x=5(55)X109=27+23X109=50X109109=50109
18、X=5450;(56) (569+4827)X=2845396X=2845396XX=284X284X=5396284X284=5396284X=19;(57)100(X+100)=12000100(X+100) 100=12000100X+100=12X+100100=120100X=20(58)x72=25 5x72=125x72+72=125+72x=197(59)38+5x=24338+5x38=243385x5=2055x=41(60)3(5x4 )=4815x12=4815x12+12=48+1215x=6015x15=6015x=4;(61)3x+24=5x123x+243x=5
19、x123x2x12=242x12+12=24+122x=362x2=362x=18(62)910x=13,x=91013,x=70;(63)36x16=18,36x1616=1816,36x=288,36x36=28836,x=8;(64)40x23x=105,17x=105,17x17=10517,x=5;(65)532x=196,532x+x=196+x,196+x=532,196+x196=532196,x=336;(66)x62=438,x6262=43862,x=27156;(67)74x=9102,74x74=910274,x=23;(68)x+634=856,x+634634=8
20、56634,x=222(1)4x56=12 ,4x30=12,4x30+30=12+30,4x=42,4x4=424,x=10.5;(69)8x3x=155,5x=155,5x5=1555,x=31;(70)30(x4)=60 ,30(x4)30=6030,x4=2,x44=24,x=8;(71)7253x=12 ,3603x=12,3603x+3x=12+3x,3x+12=360,3x+1212=36012,3x=348,3x3=3483,x=116(72 )x+175=366 x+175175=366175x=191(73 )2000x=1384 2000x+x=1384+x200013.
21、84=1384+x1384x=616 (74 )x14=250 x1414=25014X=3500 (75 )45x=468045x45=468045x=104 (76 )x39=200+34 x39=234x3939=23439x=6(77 )3780x=183780xx=18x378018=18x18x=210(78)532x=196532x+x=196+x196+x=532196+x196=532196x=336;(79)x62=48 x6262=4862x=2976;(80)74x=281274x74=281274x=38(81)4x39=29 ,4x27=29,4x27+27=29+
22、27,4x=56,4x4=564,x=14;(82)13(x+5)=169 ,13x+65=169,13x+6565=16965,13x=104,13x13=10413,x=8(83)4x6=304x6+6=30+64x4=364x=9;(84)4x2x=48 2x=482x2=482x=24;(85)5x9=255x99=2595x=2255x5=2255x=45;(86)2y+3y+60=1455y+60=1455y+6060=145605y=855y5=855y=17(87)16x2=1288x=1288x8=1288x=16;(88)6x+180=3306x+180180=330180
23、6x6=1506x=25(89)13x+7=15013x+77=150713x13=14313x=11(90)2005x=402005x5x=405x200x=200200x200=200200x=1(91)4(3x+6)=48,4(3x+6) 4=484,3x+66=126,3x3=63,x=2;(92)5(x+24)=255,5(x+24) 5=2555,x+2424=5124,x=27;(93) (x12) 4=4.5,(x12 )44=4.5 4,x12+12=18+12,x=30;(94)45x+x=368,46x=368,46x46=36846,x=8(95)4542x=22645
24、42x+2x=226+2x454226=226+2x2262x=228;X=114(96)203x=4060x+x=40+x6040=40+x40x=20;(97) (52+34)x=559086x=559086x86=559086x=65;(98)x43=508x4343=50843x=21844;(99)x4.3=9.08 x4.3+4.3=9.08+4.3x=13.38;(100)488x=61488xx=61x48861=61x61x=8(101)6x35=136x35+35=13+356x=486x6=486x=8;(102)3812+x=5426+x=542626+x=5426x=
25、28(103)34x48=268,34x48+48=268+48,34x=748,34x34=74834,x=22;(104)13(X+5)=169 ,13(X+5 )13=16913,x+5=13,x+55=135,x=8 (105)843x=2 ,323x=2,323x+3x2=2+3x2,30=3x,3x=30,3x3=303,x=10,(106)5x2x=9.6,3x=9.6,3x3=9.63,x=3.2,(107)25x2=100,25x22=1002,25x=200,25x25=20025,x=8 (108)32x+61x=154,93x93=18693,x=2;(109)3x+(
26、25+15)=1600,3x+4040=160040,3x=15603,x=520(110)3x7=623x7+7=62+73x=693x3=693x=23(111)4x425=804x100+100=80+1004x=1804x4=1804x=45(112) (x+3)2=6(x+3)22=6 2x+3=12x+33=123x=9(113)192X=5,192X+2X=5+2X,2X+5=19,2X+55=195,2X=14,2X2=142,X=7;(114)2X+234=134,2X+92=134,2X+9292=13492,2X=42,2X2=422,X=21;(115)9X45=135
27、,9X45+45=135+45,9X=180,9X9=1809,X=20(116)X34=200,X34+24=200+34,X=234; (117)6X+7X=650,13X=650,13X13=65013,X=50;(118)14705X=800 ,9805X=800,9805X+5X=800+5X,980=800+5X,980800=800+5X800,5X=180,5X5=1805,X=36(119)44+X=52 44+X44=5244,x=8; (120)91X=46,91X+x=46+x,46+x=91,46+x46=9146,x=45;(121)X16=77,X16+16=77
28、+16,x=93;(122)X29=348,X2929=34829,x=12; (123)35X=210,35X35=21035,x=6;(124)X327=9,X327327=9327,x=2943;(125)8640X=320,8640xx=320x,320x320=8640320,x=27;(126)840X=840,840X840=840840,x=1;(127)420+X5=1670,420+X5420=1670420,5x5=12505,x=250;(128)1224X+109=211,1224x+109109=211109,1224xx=102x,102x102=1224102,
29、x=12(129)5x21=305x2121=30215x=6305x5=6305x=126;(130)10+9x=1991010+9x=199109x=1899x9=1899x=21;(131)5(x+5)=3555(x+5)5=3555x+55=715x=66(132)6x+15=51,6x+1515=5115,6x=36,6x6=366,x=6;(133)3(x8 )=27,3(x8)3=27 3,x8=9,x8+8=9+8,x=17;(134)x28=82,x2828=8228,x=2296;(135)14x7x=56,7x=56,7x7=567,x=8(136)7 29=80,718
30、+18=80+18,7x7=987,x=14;(137)7+5 =42,7+57=427,5x5=355,x=7(138)264+3x=363264264+3x=3632643x=993x3=993x=33(139)3x+2x=655x=655x5=655x=13(140)2x52=82x10=82x10+10=8+102x=18x=9(141)534+x=3060534534+x=3060534x=2526(142)46+3x=1334646+3x=133463x=873x3=873x=29(143)7x4=217x44=2147x=847x7=847x=12 (144)3x+9=153x+
31、99=1593x=63x3=63x=2;(145)x12=6x1212=612x=72;(146)136x=60136x+x=60+x136=60+x13660=6060+xx=76(147)x34=2924,x3434=292434,x=86;(148)186x=2604,186x186=2604186,x=14;(149)x+723=1280,x+723723=1280723,x=557;(150)8670x=15,8670xx=15x,867015=15x15,x=578;(151)x28=147,x2828=14728,x=4116;(152)7083x=3465,7083x+x=34
32、65+x,70833465=3465+x3465,x=3618 (153)3x+5=20,3x+55=205,3x=15,3x3=153,x=5;(154)40x+20x=120,60x=120,60x60=12060,x=2;(155)405x=30,405x+5x=30+5x,30+5x=40,30+5x30=4030,5x=10,5x5=105,x=2(156)7x50=1607x50+50=160+507x=2107x7=2107x=30;(157)32+17x=4049x=4049x+x=40+x40+x=4940+x40=4940x=9;(158)8x4=408x44=4048x=
33、1608x8=1608x=20;(159)915x=36915x+5x=36+5x36+5x=9136+5x36=91365x=555x5=555x=11 (160)8(2X7)=5 (X+13 ) ,16x56=5x+65,16x565x=5x+655x,11x56=65,11x56+56=65+56,11x=121,11x11=12111,x=11,(161)3(x+4.5)=60 ,3(x+4.5)3=603,x+4.5=20,x+4.54.5=204.5,x=15.5(162)X11=3,X1111=311,X=33;(163)13(X+5)=169 ,13(X+5 )13=16913,X+5=13,X+55=135,X=8;(164)4X97=342,4X63=342,4X63+63=342+63,4X=972,4X4=9724,X=243;(165)2X97=342,2X97+97=342+97,2X=1312,2X2=13122,X=656(166)4x56=12 ,4x30=12,4x30+30=12+30,4x=42,4x4=424,x=10.5;