1、初一数学上册解方程专项练习题395 x 1 x 0.9x0.84.45.8x3 6 6 8 1 6x9x 4(x9)2(x5)199 9 1 1 (3x1)x3 9x5(11x)95 5 y1 y3 9 0.5x9(x6)10 3 5 1 2 (52x)(3x5) 8(6x1)136 7 7 x 1 x 0.8x0.14.39.3x9 6 9 2 1 8x4x 3(x4)5(x9)23 7 1 4 (4x8)x1 3x5(15x)39 5 y2 y3 3 0.5x4.5(x1)10 2 6 1 2 (43x)(2x4) 5(4x7)166 3 7 x 1 x 0.4x0.29.28.3x3 4
2、 9 8 1 4x9x 9(x3)3(x7)49 6 1 3 (2x1)x7 2x3(17x)88 5 y3 y2 6 3x3(x8)25 4 6 1 2 (34x)(4x3) 3(8x8)115 7 7 x 1 x 0.2x0.80.20.5x9 8 9 8 1 4x3x 3(x4)9(x4)167 3 1 4 (2x3)x3 3x9(3x)99 5 y2 y1 5 2x6.5(x1)30 4 5 1 2 (52x)(5x4) 5(2x9)45 7 7 x 1 x 0.4x0.69.33.3x3 8 6 2 1 3x2x 7(x2)3(x6)169 8 1 3 (8x1)x5 7x9(15x
3、)39 5 y1 y1 9 3x7.5(x6)25 2 6 1 2 (33x)(5x2) 3(7x7)106 9 7 x 1 x 0.6x0.93.74.5x6 4 3 8 1 4x1x 8(x2)9(x9)55 8 1 2 (2x3)x1 8x5(14x)78 5 y1 y3 3 4x7.5(x6)10 3 6 1 2 (22x)(2x3) 4(7x6)93 7 5 x 1 x 0.6x0.71.95.4x6 8 9 2 1 4x2x 8(x8)3(x5)75 2 1 3 (2x1)x1 4x3(14x)69 5 y3 y3 3 4.5x1(x9)5 4 6 1 2 (44x)(4x1) 4
4、(6x8)48 5 7 x 1 x 0.1x0.56.43.8x9 8 3 2 1 4x2x 7(x2)7(x9)175 8 1 1 (9x8)x1 4x7(16x)72 5 y3 y2 4 4.5x10(x2)5 2 5 1 2 (33x)(2x1) 6(5x9)164 9 7 x 1 x 0.5x0.48.11.8x6 6 9 8 1 9x9x 8(x4)9(x4)133 5 1 4 (4x6)x8 8x9(6x)48 5 y2 y1 9 3.5x9(x5)25 3 6 1 2 (54x)(2x3) 9(9x9)76 5 5 x 1 x 0.4x0.80.73.3x6 8 6 4 1 4x
5、5x 7(x3)2(x7)193 3 1 3 (7x6)x7 2x4(6x)55 5 y2 y2 1 1x8.5(x7)30 3 5 1 2 (42x)(3x2) 9(3x5)43 9 7 x 1 x 0.7x0.90.25.1x3 4 6 4 1 3x9x 6(x9)4(x1)53 7 1 1 (6x5)x3 3x4(5x)52 5 y1 y3 6 4.5x4(x7)20 3 5 1 2 (24x)(5x3) 2(3x3)133 3 7 x 1 x 0.1x0.58.20.1x9 8 6 2 1 7x7x 3(x3)9(x3)119 2 1 1 (7x4)x3 5x8(14x)73 5 y2
6、 y2 4 0.5x8(x7)5 2 5 1 2 (44x)(2x1) 6(5x8)76 3 5 x 1 x 0.9x0.47.55.6x3 6 6 2 1 7x5x 8(x2)7(x4)33 5 1 1 (6x2)x5 2x3(19x)37 5 y2 y3 1 1.5x1(x8)15 2 6 1 2 (33x)(3x5) 3(4x1)48 9 7 x 1 x 0.8x0.21.66x9 8 6 2 1 5x2x 6(x1)5(x8)179 6 1 3 (7x4)x8 8x8(3x)68 5 y2 y2 8 4x7(x3)25 3 6 1 2 (24x)(5x4) 9(7x3)66 3 5 x 1 x 0.4x0.47.43.9x9 6 9 4 1 2x2x 2(x8)5(x9)39 6 1 4 (9x1)x5 6x6(4x)33 5 y3 y3 7 2.5x1.5(x4)25 2 6 1 2 (42x)(5x5) 6(2x3)165 9 7 x 1 x 0.6x0.256.3x6 2 9 2 1 4x5x 5(x6)5(x8)67 8 1 4 (6x8)x3 6x7(20x)33 5 y2 y1 5 2x10(x1)40 4 6 1 2 (13x)(3x5) 7(6x8)28 9
