七年级数学上册一元一次方程专项练习题33.docx

1、七年级数学上册一元一次方程专项练习题335 x 1 x 0.4x0.11.56.5x9 2 3 8 1 9x6x 4(x8)7(x2)69 9 1 3 (7x7)x2 4x7(19x)83 5 y2 y3 8 2x3(x7)35 2 6 1 2 (53x)(5x5) 4(6x4)67 3 7 x 1 x 0.7x0.86.84.5x3 2 3 8 1 8x6x 2(x9)6(x4)97 8 1 2 (8x8)x6 2x3(16x)87 5 y1 y2 5 1x8.5(x2)40 3 5 1 2 (53x)(4x2) 6(9x6)39 9 7 x 1 x 0.7x0.61.18.9x3 6 9

2、2 1 9x2x 6(x1)9(x9)139 7 1 4 (7x6)x9 5x4(9x)57 5 y2 y3 3 5x8.5(x3)50 3 6 1 2 (22x)(5x5) 3(2x1)19 9 5 x 1 x 0.4x0.74.13.9x6 6 3 2 1 8x5x 2(x5)5(x9)129 8 1 2 (4x9)x7 2x8(15x)25 5 y3 y3 5 2.5x9.5(x8)40 4 6 1 2 (33x)(5x4) 9(5x6)184 9 5 x 1 x 0.9x0.88.30.1x3 2 6 8 1 5x7x 3(x5)2(x7)27 8 1 3 (6x6)x5 5x2(7x

3、)22 5 y2 y1 7 3.5x1(x6)30 4 5 1 2 (33x)(5x4) 6(8x9)122 9 7 x 1 x 0.4x0.87.63.6x9 2 3 4 1 2x4x 2(x4)8(x2)195 6 1 4 (5x9)x3 7x5(18x)79 5 y3 y2 4 3x2(x9)35 4 6 1 2 (34x)(4x2) 4(4x5)176 5 7 x 1 x 0.7x0.22.56.4x3 4 9 8 1 5x9x 8(x2)3(x9)105 3 1 1 (8x5)x6 8x8(17x)67 5 y2 y2 4 4x8.5(x7)10 4 5 1 2 (24x)(2x2)

4、 3(5x4)98 9 5 x 1 x 0.3x0.91.69.1x6 6 9 4 1 7x3x 2(x6)7(x4)107 7 1 2 (3x5)x2 3x6(6x)82 5 y3 y3 4 2.5x9(x1)50 4 5 1 2 (34x)(3x4) 3(2x7)184 5 7 x 1 x 0.3x0.30.63.4x9 8 6 8 1 9x4x 3(x7)2(x3)167 5 1 1 (2x3)x1 3x8(9x)57 5 y2 y1 3 0.5x1(x5)35 4 5 1 2 (14x)(3x3) 7(3x8)18 7 5 x 1 x 0.4x0.92.53.1x3 6 9 2 1 4x7x 8(x2)6(x8)19 3 1 1 (3x9)x8 9x5(11x)75 5 y3 y3 3 1x8.5(x6)40 2 6 1 2 (22x)(4x2) 7(9x7)182 3