初一数学上册一元一次方程综合练习题94.docx

1、初一数学上册一元一次方程综合练习题945 x 1 x 0.5x0.38.36.5x3 6 9 2 1 4x8x 7(x4)2(x1)103 2 1 1 (6x1)x9 6x4(15x)83 5 y3 y1 3 5x9(x2)25 3 5 1 2 (13x)(2x2) 7(5x6)74 3 5 x 1 x 0.9x0.57.52.2x3 2 9 2 1 5x4x 6(x9)3(x2)159 4 1 2 (6x2)x6 3x5(18x)13 5 y1 y2 5 3x5(x6)5 4 6 1 2 (52x)(3x1) 4(3x6)59 5 7 x 1 x 0.4x0.122.2x3 6 3 8 1

2、7x6x 9(x1)2(x8)119 4 1 1 (7x8)x2 2x5(14x)99 5 y2 y1 9 5x2.5(x2)25 2 5 1 2 (52x)(5x1) 2(3x3)48 3 5 x 1 x 0.2x0.85.50.6x9 8 3 8 1 9x7x 8(x3)9(x3)105 9 1 2 (9x1)x3 7x8(3x)97 5 y3 y3 6 4.5x6(x9)35 3 6 1 2 (54x)(2x4) 4(4x4)128 3 7 x 1 x 0.2x0.54.16.9x3 8 3 4 1 7x1x 5(x6)8(x1)43 7 1 1 (9x4)x9 8x8(12x)88 5

3、 y2 y3 9 2.5x4.5(x4)15 4 5 1 2 (42x)(3x5) 3(7x7)97 3 7 x 1 x 0.5x0.37.51.7x3 6 3 8 1 2x3x 6(x7)7(x4)69 4 1 2 (7x4)x4 4x9(5x)66 5 y2 y2 3 3x1.5(x3)40 4 5 1 2 (22x)(5x3) 7(7x1)175 5 5 x 1 x 0.7x0.54.80.1x9 6 6 4 1 7x5x 7(x5)3(x8)49 3 1 4 (7x2)x2 9x2(3x)44 5 y3 y1 1 0.5x1.5(x3)35 2 6 1 2 (14x)(4x1) 7(7

4、x1)136 9 7 x 1 x 0.1x0.87.50.4x9 2 9 2 1 7x6x 2(x4)4(x3)17 2 1 1 (7x8)x7 5x8(14x)26 5 y1 y3 6 5x6.5(x4)30 4 6 1 2 (34x)(2x3) 2(3x8)34 7 5 x 1 x 0.3x0.56.66.5x6 6 6 8 1 7x9x 9(x9)9(x5)19 4 1 4 (5x2)x9 6x9(10x)59 5 y1 y1 5 3.5x2(x3)25 3 6 1 2 (22x)(3x5) 9(2x8)155 5 7 x 1 x 0.5x0.62.50.3x9 6 6 8 1 3x7x 6(x5)7(x9)185 9 1 3 (6x7)x6 6x7(3x)48 5 y3 y2 8 0.5x7(x9)45 3 6 1 2 (44x)(4x1) 5(6x5)126 5