初一数学上册一元一次方程综合练习题3.docx

1、初一数学上册一元一次方程综合练习题35 x 1 x 0.3x0.86.10.1x9 2 9 2 1 9x6x 3(x3)9(x1)183 5 1 2 (6x6)x6 5x4(20x)88 5 y2 y1 2 1.5x2.5(x4)45 2 5 1 2 (12x)(3x1) 4(8x9)133 3 7 x 1 x 0.7x0.68.16.5x6 6 3 4 1 8x6x 6(x3)2(x7)159 9 1 3 (5x5)x8 6x9(15x)35 5 y2 y3 8 2x1.5(x4)40 4 6 1 2 (52x)(2x3) 8(5x8)193 9 7 x 1 x 0.3x0.38.35.7x

2、6 4 9 4 1 8x1x 9(x6)6(x6)47 7 1 2 (9x8)x7 5x4(4x)82 5 y2 y3 8 4x0.5(x1)45 2 6 1 2 (34x)(4x2) 2(6x4)36 5 5 x 1 x 0.6x0.88.43x3 2 3 2 1 4x7x 7(x6)5(x8)117 8 1 1 (4x8)x3 6x6(15x)89 5 y3 y3 9 2x2(x9)20 4 5 1 2 (42x)(3x2) 6(6x9)37 5 7 x 1 x 0.7x0.65.62.7x6 8 9 4 1 5x5x 5(x5)5(x9)67 9 1 1 (4x3)x9 7x2(12x)

3、92 5 y3 y3 9 4.5x5.5(x9)30 2 6 1 2 (53x)(4x1) 9(6x8)184 7 7 x 1 x 0.6x0.39.72.6x6 4 9 8 1 3x7x 3(x5)3(x6)49 9 1 1 (5x9)x4 5x3(12x)65 5 y1 y1 1 4x1.5(x8)45 3 6 1 2 (53x)(5x5) 7(9x6)106 7 5 x 1 x 0.2x0.23.99.6x3 8 9 2 1 6x5x 9(x1)4(x5)69 9 1 1 (8x6)x1 3x7(2x)37 5 y2 y2 5 1x1.5(x9)15 3 6 1 2 (12x)(3x4)

4、 4(5x3)144 5 7 x 1 x 0.2x0.60.89.3x3 4 9 8 1 3x3x 6(x4)9(x2)23 8 1 2 (5x6)x8 2x7(7x)33 5 y1 y3 8 1.5x3.5(x7)20 3 5 1 2 (12x)(2x2) 6(3x4)97 3 5 x 1 x 0.2x0.86.67.7x9 4 3 2 1 3x5x 4(x6)2(x8)69 5 1 4 (5x1)x6 8x2(18x)92 5 y3 y2 2 2.5x8(x9)25 3 6 1 2 (33x)(2x4) 8(8x8)109 5 5 x 1 x 0.2x0.10.44x6 4 6 4 1 6x2x 2(x7)5(x3)35 7 1 3 (6x5)x4 2x8(11x)63 5 y3 y3 3 2x5(x6)30 3 5 1 2 (24x)(3x5) 5(2x1)146 9