解不等式与不等式组地练习题

1、WORD格式初二数学不等式解以下不等式：1 x 17 5； 21 x 3；2372 x 11； 41x3 4 x 3 3555 3x 1 4；63 x 1；7 2 x 1 3 x；83x 2 5x 2；5x 12x 1；6 2x 3 3x 1 23547x2 1x-1(8)2x-1 3(x-1)2(9)3x-2x 5(10)x-6 2x专业资料整理WORD格式1专业资料整理WORD格式(11)xx 1(12)2x 7 5 2x23专业资料整理WORD格式(13)1 3x 1 2x(14) x 122(4x 1) 2专业资料整理WORD格式115 103(x6) 1；162x 31 2x；x2

2、182x 1 4x 4 .17 x 4；232(19)x1 1x(20) 0.01x1 0.02x24(21)2x1 5x 1 1(22)4 x3 12 x3233(23) 5x 1 3(x+1)(24)1 2x 13x 14105专业资料整理WORD格式2专业资料整理WORD格式(25)7x 52 2(x+1)(26) x+x+ x 11723(27)2x 1 x5(28)x x113223专业资料整理WORD格式12x(29) 2( 3+x) 3(x+2)(30)3 4 3x6专业资料整理WORD格式(31)2x1 x(32)x 5+1 x3222(33)1 x 2 11 x(34)x +

3、x 135515(35) x+2x 1(36)2x 1 2x x1 123362专业资料整理WORD格式3专业资料整理WORD格式解以下不等式组：x22, 111;2x2x10, 3x0;35 x9 1, 53 x1;1（ 7 2x 8 5x 1,11 2x 21 4x;初二数学不等式组3x21,（ 21x3;2x0, 44x15.2x3x, 62x1.22x39x, 82x5103x;专业资料整理WORD格式4专业资料整理WORD格式4x 33(2x1),x 4 3(x2), 93x1x; 102x 1x;151223(11)2x1 5x 1 1(12)2x-7 3(x 1)324x +3

4、12 x5x-1 3(x+1)33(13) 5x-2 3(x+1)(14)3x-2 x+11 x -1 73xx+5 4x+122(15) x+3 5(16)x +12(x 1)23x-1 8x x 235(17) x-1 2x(18)2x+5 3(x+2)x +3 3x1 x223专业资料整理WORD格式5专业资料整理WORD格式(19) 0.2x 0.3x+1(20)x-1 1240.5x-1 0.2x + x 132(21) 1+2x 3+x(22)2 x 15x 4x 13 x 1 23 3(x 1) 4x 2 241 + 2x x+ 5 x x123233(x1) x 552251(

5、x+3) 2 26 x3(x 2) 42x 2 x 31 2xx 1233275 2x+1 6(28) 1 1 1x 355专业资料整理WORD格式6专业资料整理WORD格式(29) 4 x 152x1 2x+ 5223x12,(31)12x13x1.x1x,(30)5x+1 3(x+1)x1 2x 1233x35,(32)x33 ;24专业资料整理WORD格式(33)22(34)2 x 4 0 , 专业资料整理WORD格式x232;12 x0专业资料整理WORD格式2x35,3x15,(35)24(36)6;4x2x专业资料整理WORD格式7专业资料整理WORD格式9 x5 8 x 7423 ( x2 )x8专业资料整理WORD格式(37)x 2 1 x(38)33x3 ( x2 )4x x 143x323x专业资料整理WORD格式(39)2 x 15(40)3x213 ( x1 )8x专业资料整理WORD格式x0