1、初一数学上册解方程专项练习题337 x 1 x 0.3x0.65.51.7x6 4 9 4 1 8x4x 6(x3)7(x8)153 3 1 2 (2x8)x8 6x7(14x)57 5 y3 y3 3 5x0.5(x9)50 3 5 1 2 (53x)(2x5) 7(2x4)195 7 7 x 1 x 0.1x0.74.13x3 2 9 4 1 5x5x 8(x7)2(x5)129 8 1 4 (6x5)x6 5x6(10x)58 5 y2 y3 7 3x0.5(x5)40 4 6 1 2 (23x)(5x5) 2(5x7)135 9 5 x 1 x 0.8x0.91.46.5x3 2 3
2、2 1 3x2x 4(x4)3(x7)109 4 1 4 (9x3)x6 3x4(10x)78 5 y1 y2 4 4.5x2.5(x4)15 4 6 1 2 (12x)(2x4) 4(2x9)125 7 5 x 1 x 0.8x0.81.66.1x3 4 9 4 1 5x6x 7(x4)3(x2)119 9 1 3 (6x7)x4 5x5(1x)62 5 y3 y1 3 2.5x2.5(x4)40 4 6 1 2 (44x)(3x5) 4(3x2)167 7 7 x 1 x 0.9x0.89.86.5x9 2 6 4 1 9x9x 2(x9)5(x4)53 5 1 1 (6x8)x3 7x5
3、(8x)22 5 y1 y2 5 0.5x5(x8)20 2 6 1 2 (23x)(4x5) 2(4x6)76 3 7 x 1 x 0.9x0.75.63.2x9 6 6 2 1 3x8x 7(x1)5(x2)135 7 1 1 (6x5)x2 9x6(3x)14 5 y2 y2 1 0.5x8.5(x2)30 3 5 1 2 (43x)(3x5) 2(3x2)44 5 5 x 1 x 0.6x0.30.67x9 6 3 4 1 7x3x 8(x8)9(x3)115 9 1 1 (5x1)x8 3x4(1x)36 5 y2 y2 7 0.5x8(x5)15 3 5 1 2 (42x)(4x4
4、) 9(3x6)104 5 5 x 1 x 0.2x0.50.25.1x9 8 9 8 1 2x2x 9(x9)2(x9)95 2 1 4 (2x5)x5 9x9(2x)18 5 y1 y3 5 5x9(x2)10 2 6 1 2 (33x)(4x2) 6(8x7)59 5 7 x 1 x 0.7x0.56.27.5x6 6 9 8 1 9x7x 6(x5)8(x7)125 8 1 1 (3x7)x2 7x4(4x)55 5 y1 y1 6 3.5x5(x9)30 4 5 1 2 (33x)(5x5) 9(9x6)185 7 5 x 1 x 0.1x0.550.1x6 8 6 4 1 3x3x
5、 2(x8)9(x2)185 5 1 2 (2x4)x5 8x6(5x)84 5 y3 y2 3 1.5x6(x2)25 2 6 1 2 (23x)(5x2) 8(8x8)85 5 5 x 1 x 0.9x0.27.27.9x9 8 9 2 1 5x6x 9(x7)5(x1)115 4 1 3 (2x1)x1 6x4(13x)66 5 y2 y3 9 1.5x4(x5)25 3 5 1 2 (32x)(3x2) 7(4x3)53 3 5 x 1 x 0.5x0.20.90.7x3 4 9 4 1 2x6x 2(x5)8(x8)83 5 1 1 (8x7)x6 7x8(16x)97 5 y3 y
6、3 5 3.5x9(x8)50 3 5 1 2 (14x)(5x1) 3(9x2)49 3 5 x 1 x 0.2x0.21.38.6x3 2 6 2 1 9x9x 5(x9)8(x5)159 9 1 1 (7x2)x2 6x4(14x)87 5 y1 y3 4 4x5.5(x1)20 2 6 1 2 (44x)(3x2) 9(8x4)136 5 7 x 1 x 0.2x0.36.87.5x9 2 6 2 1 8x7x 5(x9)9(x7)173 4 1 3 (2x4)x1 2x7(3x)18 5 y2 y3 1 3x3(x4)45 4 6 1 2 (44x)(5x3) 9(2x4)166 9 5 x 1 x 0.2x0.253.4x9 8 6 2 1 9x5x 9(x7)5(x1)139 5 1 2 (4x1)x2 9x2(5x)94 5 y3 y3 2 5x7.5(x3)50 2 6 1 2 (33x)(3x2) 6(3x1)122 5 5 x 1 x 0.6x0.20.92x3 4 6 8 1 3x5x 6(x9)7(x3)145 7 1 3 (8x4)x7 8x5(11x)83 5 y1 y3 8 1.5x0.5(x4)5 3 6 1 2 (13x)(2x1) 7(2x9)84 9
