七年级数学上册解方程专项练习题35.docx

1、七年级数学上册解方程专项练习题355 x 1 x 0.1x0.35.61.3x6 6 6 4 1 4x5x 9(x5)8(x8)39 4 1 2 (3x1)x2 2x9(7x)15 5 y3 y1 2 4x2(x2)50 2 6 1 2 (13x)(2x2) 2(6x4)108 7 5 x 1 x 0.6x0.98.29.9x9 8 9 8 1 6x3x 6(x8)7(x3)199 6 1 1 (9x8)x7 3x6(4x)89 5 y1 y3 9 3x4(x6)30 3 5 1 2 (23x)(2x1) 2(7x4)54 3 5 x 1 x 0.3x0.452.4x9 6 6 8 1 2x3

2、x 2(x4)2(x6)27 7 1 3 (4x3)x8 6x9(1x)48 5 y2 y2 4 1.5x4(x1)30 4 6 1 2 (22x)(4x3) 9(2x8)105 7 7 x 1 x 0.3x0.52.17.9x3 8 6 4 1 9x2x 3(x8)4(x7)105 2 1 2 (6x2)x7 7x6(20x)32 5 y3 y3 4 1.5x5(x2)10 3 6 1 2 (14x)(5x5) 9(5x2)54 3 7 x 1 x 0.8x0.78.25.4x6 4 6 2 1 4x5x 7(x1)9(x5)109 9 1 3 (8x9)x7 8x6(19x)78 5 y1

3、 y3 7 2.5x7(x1)5 4 5 1 2 (13x)(2x2) 4(3x9)148 9 5 x 1 x 0.4x0.44.79.4x3 8 3 8 1 3x8x 3(x3)7(x5)107 6 1 2 (8x2)x8 7x7(20x)78 5 y1 y1 1 4.5x0.5(x2)20 2 6 1 2 (44x)(4x1) 2(3x8)16 5 5 x 1 x 0.3x0.10.85.3x3 2 3 8 1 2x9x 6(x5)4(x3)197 7 1 3 (3x8)x4 8x5(12x)99 5 y3 y1 7 0.5x3.5(x6)45 4 5 1 2 (54x)(5x4) 3(3

4、x4)32 9 7 x 1 x 0.1x0.64.87.4x6 6 3 8 1 6x7x 5(x8)6(x8)159 5 1 1 (7x7)x8 5x2(2x)45 5 y1 y1 1 3x10(x6)35 4 6 1 2 (54x)(3x1) 6(9x1)153 9 5 x 1 x 0.1x0.59.36.5x6 6 3 4 1 2x9x 5(x6)5(x3)59 4 1 3 (2x7)x8 2x5(5x)32 5 y1 y3 1 2.5x7(x4)45 3 5 1 2 (53x)(5x4) 2(4x9)144 7 7 x 1 x 0.9x0.44.11.1x6 4 6 4 1 8x6x 3

5、(x7)4(x8)143 4 1 2 (2x3)x8 8x5(19x)28 5 y3 y3 2 1x0.5(x8)45 3 6 1 2 (14x)(5x1) 7(6x6)28 3 5 x 1 x 0.9x0.27.38.7x9 8 3 4 1 2x7x 4(x6)5(x6)53 5 1 1 (5x4)x3 4x3(8x)65 5 y2 y1 2 0.5x3(x1)30 2 5 1 2 (32x)(3x1) 3(9x1)34 7 7 x 1 x 0.6x0.43.86.9x6 6 9 8 1 8x3x 5(x2)2(x9)17 4 1 4 (7x3)x5 6x2(2x)62 5 y1 y3 6

6、3x9(x4)50 2 5 1 2 (22x)(3x4) 4(9x4)206 3 5 x 1 x 0.9x0.52.97.2x6 2 3 4 1 7x7x 4(x5)3(x3)195 4 1 1 (9x4)x3 8x5(14x)48 5 y2 y3 4 1x7(x3)15 2 5 1 2 (33x)(4x3) 6(8x7)92 3 7 x 1 x 0.5x0.22.23.9x6 2 9 2 1 2x8x 8(x5)4(x7)99 4 1 3 (9x5)x1 3x4(1x)23 5 y1 y1 5 3x6.5(x2)5 4 5 1 2 (53x)(5x4) 7(9x2)177 5 7 x 1 x 0.4x0.62.92.5x9 6 3 2 1 8x8x 5(x2)9(x9)97 7 1 3 (4x5)x5 6x6(17x)34 5 y2 y1 2 5x5(x7)35 2 5 1 2 (33x)(2x4) 6(5x9)37 5