七年级数学上册解方程专项练习题33.docx

1、七年级数学上册解方程专项练习题335 x 1 x 0.1x0.794x6 8 6 4 1 4x6x 9(x8)6(x2)89 3 1 2 (7x8)x8 7x4(6x)77 5 y2 y1 6 1.5x10(x1)50 3 6 1 2 (33x)(2x1) 3(3x3)12 3 7 x 1 x 0.7x0.42.52.2x9 8 9 4 1 3x3x 2(x6)4(x4)89 9 1 4 (8x2)x7 3x9(15x)53 5 y3 y3 6 1x4(x3)30 3 6 1 2 (22x)(4x3) 5(9x6)26 9 5 x 1 x 0.3x0.12.60.9x6 8 6 4 1 2x7

2、x 3(x8)4(x3)145 5 1 1 (8x5)x1 4x3(18x)17 5 y2 y3 7 2x1(x9)10 2 6 1 2 (23x)(2x4) 3(7x2)206 3 7 x 1 x 0.1x0.753.9x9 2 9 4 1 2x8x 4(x4)3(x7)35 8 1 2 (2x9)x4 2x8(13x)95 5 y3 y1 8 3.5x1(x4)45 2 6 1 2 (14x)(3x2) 7(7x7)108 9 5 x 1 x 0.5x0.35.24.9x3 4 3 4 1 2x1x 8(x7)3(x2)117 9 1 2 (9x2)x8 4x5(20x)83 5 y3 y

3、1 8 3x7.5(x5)25 3 6 1 2 (32x)(5x2) 4(5x1)206 7 5 x 1 x 0.9x0.60.68.1x3 6 9 8 1 7x8x 3(x3)7(x4)85 4 1 3 (6x8)x9 3x4(16x)46 5 y1 y3 7 3x9.5(x6)40 3 5 1 2 (42x)(5x5) 9(5x7)14 7 5 x 1 x 0.3x0.28.22.6x6 4 6 2 1 6x3x 9(x9)5(x3)119 3 1 2 (8x8)x3 5x7(9x)97 5 y1 y2 3 5x8(x5)35 4 5 1 2 (24x)(5x5) 3(2x6)97 7 7

4、 x 1 x 0.6x0.48.61.5x9 2 3 4 1 5x4x 5(x4)6(x3)165 6 1 3 (9x3)x5 6x6(17x)14 5 y2 y2 4 5x3.5(x6)40 2 6 1 2 (12x)(3x2) 4(4x7)34 7 5 x 1 x 0.8x0.20.16x3 8 6 2 1 8x7x 5(x8)6(x8)103 4 1 3 (5x9)x8 9x9(13x)42 5 y1 y3 3 4.5x5.5(x5)15 4 6 1 2 (14x)(3x3) 5(3x1)115 7 7 x 1 x 0.4x0.99.35x9 6 6 4 1 5x1x 7(x4)6(x3

5、)119 6 1 2 (8x9)x8 7x3(19x)39 5 y1 y3 7 4.5x4(x7)5 3 5 1 2 (24x)(5x1) 4(5x8)122 5 5 x 1 x 0.8x0.81.70.4x3 6 3 4 1 4x9x 3(x7)8(x6)145 2 1 4 (4x8)x1 9x8(18x)46 5 y3 y3 4 3x8.5(x9)50 4 6 1 2 (33x)(5x3) 6(5x2)142 7 7 x 1 x 0.7x0.46.37.8x9 6 6 4 1 5x4x 8(x5)4(x9)135 7 1 1 (5x5)x5 3x9(13x)79 5 y3 y2 5 2.5

6、x10(x6)50 3 6 1 2 (33x)(5x1) 2(4x7)105 5 7 x 1 x 0.7x0.89.56.1x3 6 9 8 1 2x7x 4(x5)3(x4)173 3 1 3 (5x7)x5 2x7(8x)49 5 y2 y1 4 2x7(x5)35 4 6 1 2 (24x)(4x5) 2(3x6)199 3 7 x 1 x 0.7x0.14.94x3 4 6 4 1 7x7x 2(x2)3(x8)133 7 1 2 (6x2)x7 2x5(5x)27 5 y1 y3 9 2x3.5(x3)20 3 6 1 2 (24x)(3x3) 5(5x4)36 5 7 x 1 x 0.1x0.92.66.8x6 2 3 2 1 8x3x 8(x9)9(x7)105 5 1 3 (7x5)x2 3x3(17x)93 5 y3 y2 9 2x5(x3)40 3 5 1 2 (54x)(2x1) 3(5x9)188 5