(1)2x1 (3)
1x4; (2)0.8x0.10.5x0.7 2153x17x; x42x3x; (4)2236
(5)
x12x3x132123; (6)[(x1)2]x 123232463(7)2[1
11x1103x1111(x)](2x)(8)(2x3)(2x4)(2x5)(2x6) 33232345(9)5x+2=7x-8; (10)72x134x123x210
(11)
5x17; 63 (12)
72y1112y22y1; 223(13)322x1x21; (14)2x12x2
662 (15)1x2313x221x12;
7x12(5x1)82(6x9)(17)323
(x1)30%(100x)25%2(19)5x;
(21)16141312x1351
2316)34[43(12x14)8]32x1 x218xx(18)692
23x5xx2(20)234
(22)2(2x-1)-4(4x-1)-5(2x+1)-19=0 (
(23)
3x13x5x410.4x0.90.1x0.50.030.02x 12 (24)34620.50.20.03(25)3[2(1x1)2]212x (26)2{3[4(5x-1)-8]-20}-7=1
23423
(27)2-5+3)=9
(28)2[(x+3)-2(x+1)]-5=0
(29)3x-2(x3)16x2x2 (30)x3x41.6
3260.150.2
(31)1{1[1(x24)6]8}1 (32)3x=2x+5 (33)2y+3=y-1
9753
(34)7y=4-3y (35)-
21y= (36)10x+7=12x-5-3x 35
(37)8x―4+2x= 4x―3 (38).2(3x+4)=6-5(x-7) (39).x2x45x122316 (40)
(41)
2(2x1)0.012.50.220x0.23.5
(43)
4x1.55x0.81.2x0.50.20.13
x12[x12(x12)]2 (42)(x5)x2x34x235 (44). x-1xx3=26-1 0.4y0.9y50.30.2y (45) 0.5-2=0.3
11(46) 3(x+2)-3(2x-3)=2(2x-3)-2(x+2)
1111(47) 3{3[3(3x-2)-2]}-2=0 (48) 5(y+8)―5 = 4(2y―7);
233x23x1.88x1.33x5x0.4) (49)、x(1; (50)、;
32361.220.3
(1)x =2; (2)x =—2; (3)x =7; (4)x =1; (5)x =—5; (6)x =3 (7)x =
(13)x=0; (14)x=6; (15)x
1; 32711; (8)x =. (9)x=5; (10)x; (11)x=3; (12)y; 782261; (16)x7. 74x 17.
832253050616xxx9 18.5 19357 2025
18 5
21. x=8 =-1 =-3 =9 ==1 27、x=-80
28、x=-
3 229、
52 30、 31、x=1 9251 35)y=- 36)x=-12 37)x= 5667217=3 =- = 41.x 42、x=6 ; 43、x=-2 ;
25632)x=5 33)y=-4 34)y=
2y9 46.x12 47. x=186 x44. 45. 7
48、 y = 21 49、x=
11; 50、x=; 210
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