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1、精品文档12欢迎下载一、解方程（等式的性质）20分x 2 3 x3x 1.3x 5x 2.7x12 3 6 4x 1 2x5 5 3x5 3x 8x 17x 3 2xx 3x 1.2 4.8 5x3x 7 4x 6x 211x 64 2x 100 9xx 7 8x 9x 3 4x2x x 3 1.5 2x0.5x 0.7 6.5 1.3x4x 6x 0.5x0.3x 2x 15x 6- x 3532x 23x x x xx 1 2 4 8 16x 2x 1 - x3二、解方程（去括号）30分2（x 1） 410(x 1) 5(x 3) 5x 93(x 2) 1 x (2x 1)5(x 2)2(
2、5x 1)2(x 1) (x 2)3(4 x)4x 32(x1)1(x 1) 2(x 1) 1 3x2(x 2) 6(4x 1) 3(1 x)4(x 2) 3(5x 1) 9(1 x)1 2(2x3)3(2x 1)(x 1) 2(x 1)1 3x2(x2)(x3)2(x 4) 2x 7 (x 1)2x(5x16)32(3x4)3(x 2)14x(2x1)4x2(x2)12(x 4)2(x 2) 3(4x 1) 9(1 x)2( y 2) 3(4y 1) 9(1 y)4x 3(20 x) 6x 7(9 x)2 34(5x 1) 8 20 71x 2x 3(x 4) 5 32x x 8(x 4)
3、2112-x (x 1)- (x 1)2231122x x (x 1) (x 1)2234x 3(20 x) 6x 7(9 x)1111 彳x 12 3 4 564 =1三、解方程(去分母)50分12(3x 6) x 3655x 2x 3 八- 2351 1-(-x 1) 1 12 22x2x1- 136116(2x 4 2x 7 (3x d1 i一x -(3 2x) 1523 | x+5|=525y 1 763x 10 x 6341 x 1 .(x 1) 1260.1x 0,2x 1 0.3x /10.50.22x 1 10x 1 2x 1 ,13645 3x 3 5x23x 3 2x 5
4、/ 八1.65x 13x 1 2 x0.20.32x 1x 11 25 ，5x 19x 12x 13x 22x 12x 13x2x 12x 2 x 3 2x5 3 05103x 1 x 4 - 21 9x 2 x -26x 1x 22(x 2) 5(x 3)361.8 8x 1.3 3x 5x Q41.22Q31 (2x2)4x 1 5x 536c x 1 x 1 2x 13x 2437x 1 5x 1 - 3x 22 4240.8 9x 1.3 3x 5x 11.20.203x 4 x 320.1x0.27 x 0.180.207O4x 2 3x 2244 5_x 4 5x 105 40.1x 0.20.1x 4x5x 3x 25323 8x11xy 3y_J36x 5x 11262x 41 3(x 5)2.5 30.20.05x 3000 x6410 600.1x0.9 0.2x0.030.74 6x0.01- 6.5 =0.02 2x0.02-7.5