《复杂方程计算专项练习题》由会员分享，可在线阅读，更多相关《复杂方程计算专项练习题（18页珍藏版）》请在金锄头文库上搜索。
1、小学复杂方程专项练习题(6)X+(3X16)旦=10(X+1),4(1)2x+5=5x-7,(7)当+ix+3,22(2)3(x2)=2-5(x2),(8)6(3x2)4(4x3)=1-8x,(3)金R=1,46(9)4(x-2)+20x-4=5(1-2x),(4)5+(X+16.81)=-,(10)1.6+(x0.45)=5,(5)(16 ) 2 (x+2) - 3=3x - 5,(11)35(x2)15(5x6)=(22x63)21(3x4),(12 ) x勺5+0.4=xT2 0.1 ,(17)x+(3x-16)及5%=10(x+1),(13)150.5-4x=7-0.5x(18)2x-
2、1.4=3.6+x,(14)2王=0.25-工x1128(19)1.2:(20 ) 2k - =8+x,(15)5X+7.25=12二2.5X,4(21)8(x-2)=2x+7,(26)(X+12)1=42-X,5(22)6(x-3.5)=17.8+2x,(27)乩+(X-0.55)=,7|7(23)5+(x+16.84)=0.2,(28)7X(x+6)-3x=4X(2x+5),(24)(9+R:(9-X)=5：3,(29)=2.5,3x+5(30 )60+ (x+10) =5(25)x+(3xT6)e5%=10(x+2),(37 ) 3 (x+2) =4 (x+1),(31)W(28-2x)
3、=6(x-5)(32 )64+ (2x-5) =32(38)至(x+2)=x+14(34)1J(x-45%)=2.8,(39)76(x-2)=52x-32(35)5(X+4)=26.6X,(40)81x-342=76(x-2)(42)15-(5.5x)=2x4730%x+85=70%x+25，43 16+x=12+2x+x(44 ) 2 (x4 ) =3 (x 12)(49 ) 5x- 2 (3 2x ) =16x- 23(48)8.5M.25.3x=8.54x(45 ) 0.4+ (4 x) =1 %(50)(x5)5-9=(x12)M2(52 ) 2.7xT.8=1.2x+2.7 ,(53
4、 ) 85 (6x+0.7) =10x+0.5,(57)=：3.51.5(58)X+(3X-16)及5%=10(X+1)(59 )75+ (x+10) =2,(54)8.5x-3.9x=55.2(x-18),(55)122-x-19=(x19)X5,(60)5x-3X(28x)=12+2x,(56) 3.5x+2=4x - 1(61)6(x+1)=0.5(10x+16),62 5( x+2 =4 ( x+9 ，(67)4x2(5.5x)=3.5x8,(63)127.5+(2x+3)=15,(68)2.8x=19.326.4x,643(x+2=4(x+1，(69)5(y4)-7(7-y)-9=1
5、2-3(9-y),(65)8(x1.5)=x+0.6,(70)35(x2)-15(5x6)=22x6321(3x4),(66)7(x+6)-3x=4(2x+5),(71)2.6x=51.6-3.4x,(72)3(4x2)-2(3x+3)=98x,(77)(0.6x+420)+(x+20)=3,(73)20+4x=6x-24,(78)35(2-x)+15(6-5x)=22x+7+21(43x),(7455(x1)=x+1,(79)5(3x4)2(x1)=5(2xT)(75)3(3x2)=10-0.5(x3.5),(80)x=4.9+x,3C(76)0.4(x0.2)+1.5=0.7x-0.38,
6、(81)3x+5工=2xU,443(82 ) X32= (18-x)式,(87)(9+21)x=66x由0-40-440,(83)4(4x-6)=5(3x+1),(88)x-2.5=(x1.8)2(84)10X=3(2X+17)+45,(89)12+(x-12)+_x=x52(85)5.7(X0.2)=5.1(X+0.6)+4,(90)3(X3)+4(3X2)=7(2X),(91)(86)(3x+4)+x=7(x-5)小学复杂方程专91题参考答案:(1) 2x+5=5x-7,2x+5-2x=5x72x,3x-7=5,3x-7+7=5+7,3x=12,3x3=12与，x=4;(2) 3(x-2)
7、=25(x-2),3x6=125x,3x6+5x=125x+5x,8x6=12,8x-6+6=12+6,8x=18,8x8=188,x=2.25;0.2x+1x=81-5x-H1-3x,5r1.8x-=85441.8x+=8551.8x=7.2,1.8xT.8=7.2T.8,x=4(6)X+(3X16)=10(X+1),4X+(3X16)4=10X+10,X+12X-64=10X+10,13X64=10X+10,13X64+64=10X+10+64,13X=10X+74,13X10X=10X+7410X,小修，46(、空_24,466(y+2)4(2y3)=24,302y=24,302y+2y
8、=24+2y,2y+24=30,3X=74,3X与=743,x+1=3,2y+2424=30-24,2y=6,2y2=6会,y=35-(X+16.81)X(X+16,81)=lX(X+16.81),57：X(X+16.81)=5,5x+11=31,x=2(8)6(3x2)4(4x-3)=18x,18x12-16x+12=18x,18x-16x+8x=0,10x=1,x=1TO,1X-10，-X(X+16,81)6=5X5,5(9)4(x-2)+20x-4=5(12x),4x8+20x4=5-10x,X+16.81=25,X+16.8116.81=25-16.81,x=8.1924x+10x=5
9、+12,34x=17,x=1734,1%(10)1.6-(x0.45)=5,x0.45=1.6芍，7.5X学.5=58.5,x0.45=0.32,x=0.32+0.45,x=0.77;(11)35(x2)15(5x6)=(22x63)21(3x4),(16)2(x+2)3=3x5,2x+43=3x5,35x7075x+90=22x6363x+84,2x+1+5=3x5+5,35x7075x+90-22x+63x=22x63-63x+84-22x+63x2x+6=3x,x+20=21,2x+62x=3x2x,X+20-20=2120,x=1(17)x+(3x16)及5%=10(x+1),(12)
10、xT5+0.4=xT20.1,x+12x64=10x+10,x+0.4=15x0.1,1213x64=10x+10,13x6410x=10x+1010x,x=30;3x64+64=10+64,(18)(13)150.54x=7-0.5x150.54x+0.5x=7-0.5x+0.5x150.53.5x=7,150.53.5x+3.5x=7+3.5x,150.57=7+3.5x7,3x与=74与,2x5x1.4=3.6+x,(14)143.54.5=3.5x65,17x282=0.25,nr(15)5X+7.25=122.5X,45X+7.25+2.5X=122.5X+2.5X,47.5X+7.25=127.5X+7.257.25=127.25,41.4Z=3.6+2x3忸x1.4=3.6,12x1.4+1.4=3.6+1.4x=60,(19)1.2:2-x=1.2X5,J2_o3x=6,二xy=6二333(20)一x=9=8+x,)M=(8+x)5x2=24+3x,5x23x=24+3x2x2=24,3x,(21)8x2x=26,2x妥=26受,x=138(x2)=2x+7
