1、初一数学上册解方程专项练习题647 x 1 x 0.1x0.421.6x3 6 6 2 1 3x4x 6(x1)7(x6)97 7 1 4 (9x6)x5 9x4(18x)67 5 y2 y1 5 3.5x10(x2)20 2 6 1 2 (34x)(3x2) 9(2x7)162 7 5 x 1 x 0.8x0.72.17.2x6 6 9 8 1 9x5x 2(x1)3(x3)35 7 1 4 (8x2)x5 9x4(14x)59 5 y2 y1 8 0.5x5.5(x7)45 3 6 1 2 (54x)(5x3) 4(6x2)149 9 5 x 1 x 0.3x0.24.38.9x3 4 3
2、 4 1 4x1x 3(x2)2(x4)29 3 1 3 (3x2)x1 6x9(14x)27 5 y3 y2 2 0.5x8.5(x4)25 4 5 1 2 (43x)(5x1) 8(5x3)127 5 5 x 1 x 0.5x0.10.34.5x6 2 6 4 1 9x9x 3(x1)8(x2)163 9 1 3 (5x1)x5 3x7(6x)39 5 y2 y2 3 4x2(x1)20 3 6 1 2 (23x)(3x5) 8(5x1)77 5 5 x 1 x 0.7x0.23.89.6x3 4 9 4 1 6x4x 4(x5)9(x4)47 9 1 4 (7x6)x1 2x6(18x)
3、13 5 y1 y1 1 1.5x2.5(x5)30 2 5 1 2 (52x)(5x2) 5(9x9)163 3 7 x 1 x 0.7x0.56.74.5x9 8 3 4 1 4x5x 6(x1)7(x4)197 4 1 4 (5x1)x1 8x5(5x)14 5 y1 y3 5 4.5x8(x9)45 4 5 1 2 (24x)(4x4) 3(8x8)103 9 5 x 1 x 0.1x0.12.64.6x6 2 9 8 1 3x2x 5(x6)5(x5)165 3 1 2 (9x7)x8 4x9(17x)26 5 y1 y2 8 3x9(x7)10 3 6 1 2 (44x)(2x1)
4、 6(8x3)14 9 5 x 1 x 0.2x0.54.23.3x3 6 9 2 1 3x5x 9(x6)6(x3)149 3 1 4 (7x7)x8 3x7(15x)62 5 y2 y3 3 0.5x2(x2)30 3 6 1 2 (43x)(2x3) 2(3x6)88 3 5 x 1 x 0.8x0.90.47.3x9 4 3 8 1 8x1x 6(x2)5(x4)159 9 1 3 (7x7)x4 2x4(12x)54 5 y2 y2 8 2x2(x2)50 2 6 1 2 (14x)(3x4) 5(3x2)74 9 5 x 1 x 0.2x0.81.98.7x6 2 3 4 1 9x7x 7(x3)7(x6)117 4 1 3 (4x4)x5 6x6(2x)73 5 y1 y1 5 4.5x1(x8)25 4 6 1 2 (13x)(4x4) 3(2x3)88 9 5 x 1 x 0.1x0.47.15.8x3 2 9 4 1 5x4x 2(x2)8(x9)107 6 1 2 (9x8)x6 6x6(18x)66 5
