1、初一数学上册解方程专项练习题465 x 1 x 0.7x0.78.27.6x9 4 9 8 1 2x4x 2(x6)5(x3)163 2 1 1 (9x6)x7 2x6(5x)12 5 y1 y1 7 2x4.5(x8)20 3 6 1 2 (23x)(3x1) 2(5x6)103 7 5 x 1 x 0.5x0.73.78x6 8 3 4 1 6x6x 8(x7)4(x8)105 2 1 3 (5x9)x4 7x6(20x)74 5 y2 y1 9 5x9(x1)45 3 5 1 2 (24x)(5x4) 3(9x8)107 9 7 x 1 x 0.3x0.73.84.3x9 4 9 8 1
2、 2x6x 9(x2)2(x3)53 6 1 3 (3x8)x1 7x8(6x)39 5 y3 y3 3 1x3.5(x2)15 2 6 1 2 (22x)(4x4) 4(7x5)23 3 7 x 1 x 0.3x0.92.37.8x9 6 9 2 1 5x4x 9(x4)3(x1)73 8 1 3 (8x7)x2 7x3(7x)68 5 y2 y2 8 4.5x2.5(x8)20 3 5 1 2 (54x)(4x5) 3(2x4)146 5 5 x 1 x 0.4x0.692.3x6 6 6 2 1 6x4x 3(x9)2(x5)119 5 1 3 (5x6)x3 4x8(1x)77 5 y
3、1 y1 4 3.5x1.5(x1)5 3 5 1 2 (22x)(3x1) 6(6x9)123 5 7 x 1 x 0.6x0.33.63.6x9 2 9 8 1 5x8x 3(x6)3(x8)185 3 1 4 (3x8)x2 8x9(4x)83 5 y2 y3 1 1.5x1(x2)15 4 5 1 2 (14x)(5x2) 9(2x2)116 7 5 x 1 x 0.5x0.688.8x9 6 3 2 1 8x9x 6(x5)8(x7)153 4 1 2 (6x1)x3 4x3(20x)78 5 y1 y3 6 4.5x10(x9)15 4 6 1 2 (54x)(2x2) 3(9x7
4、)197 5 5 x 1 x 0.8x0.838.5x6 2 6 4 1 6x9x 8(x7)4(x9)173 6 1 1 (5x1)x9 8x7(15x)68 5 y1 y1 5 4x8(x3)25 2 5 1 2 (54x)(2x5) 9(2x8)138 7 7 x 1 x 0.4x0.335.5x3 8 3 4 1 7x8x 8(x3)5(x1)73 5 1 3 (8x7)x7 8x9(5x)38 5 y1 y2 6 4x2.5(x3)10 3 5 1 2 (44x)(4x3) 7(2x6)132 9 7 x 1 x 0.8x0.25.96.3x3 4 9 4 1 4x1x 9(x1)3
5、(x3)207 6 1 1 (3x5)x7 4x3(9x)83 5 y3 y2 6 2x10(x3)30 4 5 1 2 (52x)(4x5) 5(9x3)209 3 5 x 1 x 0.6x0.86.43.9x9 8 3 4 1 7x6x 4(x2)6(x7)87 5 1 2 (4x7)x3 7x6(11x)89 5 y2 y3 4 3x1(x2)15 4 5 1 2 (22x)(3x2) 7(2x8)27 9 7 x 1 x 0.7x0.91.29.8x6 2 3 8 1 8x6x 2(x7)9(x9)117 2 1 2 (4x6)x3 4x7(9x)59 5 y3 y3 2 3.5x7(
6、x5)25 3 5 1 2 (42x)(5x3) 9(8x8)76 9 7 x 1 x 0.6x0.46.87.9x9 4 9 8 1 2x1x 8(x5)6(x8)207 2 1 3 (3x3)x6 8x4(4x)52 5 y1 y1 1 4.5x9(x1)40 2 6 1 2 (52x)(2x1) 8(4x5)88 7 5 x 1 x 0.8x0.579.9x3 2 3 4 1 6x5x 9(x1)3(x9)159 5 1 2 (5x7)x7 7x3(13x)32 5 y2 y1 5 3.5x5.5(x9)20 3 6 1 2 (43x)(3x1) 8(4x2)122 9 7 x 1 x 0.2x0.76.75.2x6 2 6 4 1 6x6x 7(x5)6(x8)105 6 1 2 (9x2)x2 6x5(16x)18 5 y2 y3 5 4.5x9(x5)25 2 5 1 2 (24x)(3x4) 9(2x2)176 9 7 x 1 x 0.3x0.16.43.6x3 6 6 8 1 2x5x 5(x1)2(x2)185 3 1 2 (6x9)x7 5x3(6x)29 5 y1 y2 3 1x9(x3)25 2 6 1 2 (22x)(2x2) 9(7x8)28 3
