1. ⎩
⎨⎧-≤+>+145321x x x
x 31422x x x ->⎧⎨<+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩
5. 230320x x -<⎧⎨+>⎩ 23182x x x >-⎧⎨-≤-⎩ 253(2)12
3x x x x +≤+⎧⎪-⎨<⎪⎩ ⎪⎩⎪⎨⎧+≥--<+-132
15423x x x x x )(
9. ⎪⎩⎪⎨⎧-≤-+>+31
22
14513x x x x )( ⎪⎩⎪⎨⎧>+-≥+x x x x 4121213)()( ⎪⎩⎪⎨⎧+<-<->+412052013x x x x
. ⎪⎩
⎪
⎨⎧+<++≤--->+3
.22.05.02832)1(42x x x x x x ⎩⎨⎧-≤+>+145321x x x x 314,2 2.x x x ->⎧⎨<+⎩
230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21,
24 1.x x x x >-⎧⎨+<-⎩
2
51,3311.48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩
19. 3(2)451312
x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1)2(1)4x x x x +≥-⎧⎨+>⎩ ⎪⎩⎪
⎨⎧-≥-->+356634)1(513x x x x
⎪⎩⎪⎨⎧-≤-+>+3122145)1(3x x x x ⎪⎪⎩⎪⎪⎨⎧-<-+<-.3
212
112)2(31x x x x . 253(2)
12
3x x x x +≤+⎧⎪-⎨<⎪⎩
25. ()324,12 1.3
x x x x --≥⎧⎪⎨+>-⎪
⎩ ⎩⎨⎧≤+-<+51148x x x 270≤523x -≤1 -1<213-x ≤4
29. ⎩⎨⎧>-<-21312x x ⎩⎨⎧>-≤-01202x x ⎪⎩⎪
⎨⎧>-≤--x x x x 22
1
58)2(3 ⎩⎨⎧+<->-22413x x x
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214)2(3x x x x ⎩⎨⎧<+≤+53201x x ⎩⎨⎧>-<-212823x x
37. ⎪⎩⎪⎨⎧<---≥5.0)1(431427-5x x x 512+≤- ⎨⎧-≤+--+<-142.045 .03)9(2)1(3x x x x 41. ⎩⎨⎧>+<-023032x x ⎩⎨⎧>-<+965732x x ⎪⎩⎪⎨⎧->+≤--122 314)12(23x x x x 43. ⎩⎨⎧-<+<6372x x x x 535112<-<-x ⎪⎩ ⎪⎨⎧≤-->3231335x x x ⎩⎨⎧->+->+148)1(223x x x x 5124≤-<-x ⎪⎩⎪⎨⎧+>+-<-2312572x x x x ⎪⎩ ⎪⎨⎧+≤-<--<+732516932x x x x x . ⎪⎩⎪⎨⎧-≤--<-++)54(31)7(4102721x x x x x 35741≤-≤-x ⎪⎩⎪⎨⎧>-<->+050903x x x ⎪⎩⎪⎨⎧+> -<+523 )1(212x x x x ⎪⎩⎪⎨⎧-<--≥+-x x x x 8)1(3132 3 ⎪⎪⎩ ⎪⎪⎨⎧+≤-<--+<+32112)1(3223 x x x x x x ⎩⎨⎧>-<+423532x x 25431≤+<-x 5⎪⎩ ⎪⎨⎧+>-≥--23214)2(231 x x x x ⎪⎩⎪ ⎨⎧>++-<-x x x x 1321)2(34 ⎩⎨⎧->-+≤)1(6255.12x x x x ⎪⎩⎪ ⎨⎧->-+<-x x x x 2 15123)12(334 ⎩⎨⎧+<+--≥+)1(21)1(323x x x x ⎩⎨ ⎧<+>-x x x 5)2(301 . ⎩⎨⎧+≤>+23412x x x x ⎪⎩⎪⎨⎧-≥+>+) 1(6)5(20 3 1x x x ⎩⎨⎧≤-<-12523x x ⎩⎨⎧-≤++≥-148112x x x x ⎪⎩⎪⎨⎧-≤-<+x x x x 3571315)1(3 ⎪⎩⎪⎨⎧<-≤+4 211 21x x ⎪⎩⎪⎨⎧-->+≤-12 1 222x x x x ⎩⎨ ⎧<->+423532x x ⎩⎨⎧≥--<+13112x x ⎩⎨⎧-<+>-12434x x x x ⎩⎨⎧>-≥-02401x x ⎩⎨ ⎧-≤-<+x x x x 3161 48 . ⎪⎩⎪⎨⎧≥+-<-x x x 12 13512 ⎩⎨⎧->+<2)1(22x x ⎩⎨⎧<>-311x x ⎪⎩⎪⎨⎧<-+<+x x x x 321)2(452 ⎪⎩⎪ ⎨⎧+≤-+<+2353 1)2(213x x x x ⎪⎩⎪⎨⎧≥+<-131202x x ⎪⎩⎪⎨⎧≥+-<-x x x 1213512 ⎪⎩⎪⎨⎧<+-≥1 4313x x ⎩⎨⎧-≤-->+2334)1(223x x x x ⎪⎩⎪⎨⎧>-+<+02)8(21042x x . ⎩⎨⎧->++<-148112x x x x ⎪⎩⎪ ⎨⎧-<-≥--31212 3)2(43x x x x ⎪⎩ ⎪⎨⎧+>-≥--23214)2(231 x x x x ⎪⎩⎪ ⎨⎧>++-<-x x x x 13 21)2(34 ⎩⎨⎧->-+≤)1(6255.12x x x x ⎪⎩⎪⎨⎧ ->--+>+132 533227)1(2x x x x x ⎪⎩⎪⎨⎧->-+<-x x x x 215123)12(334 33120<+ ⎪⎩⎪⎨⎧+-<--≥-1322 18232x x x x ⎩⎨⎧≤->+0630164x x ⎪⎩⎪⎨⎧-≤-+->-313 21435x x x x ⎪⎩⎪⎨⎧≤->-74 13341 3x x ⎩⎨⎧+>-->+)2(532)7(3)1(2x x x x (完整版)一元一次不 等式组100道计算题-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN 1. ? ??-≤+>+145321x x x x 31422x x x ->??<+? 512324x x x x ->+??+ 21241x x x x >-??+<-? 5. 230320x x -?+>? 23182x x x >-??-≤-? 253(2) 12 3x x x x +≤+?? -?? ??? ??+≥--<+-1321 5423x x x x x )( 9. ?????-≤-+>+31 22 14513x x x x )( ?????>+-≥+x x x x 4121213)()( ?????+<-<->+412052013x x x x . ?? ? ??+<++≤--->+3 .22.05.02832) 1(42x x x x x x ???-≤+>+145321x x x x 314,2 2.x x x ->??<+? 230320x x -?+>? 512,324.x x x x ->+??+ 21,24 1. x x x x >-??+<-? 2 51,3311.48x x x x ?+>-????-<-?? 19. 3(2)451312 x x x x x -+??--≥+?? 312(1)2(1)4x x x x +≥-??+>? ?????-≥-->+356634)1(513x x x x ?????-≤-+>+3122 145)1(3x x x x ???? ???-<-+<-.3 212 112)2(3 1x x x x . 253(2)12 3x x x x +≤+?? -?? 25. ()324,12 1.3 x x x x --≥???+>-? ? ???≤+-<+51148x x x 270≤523x -≤1 -1<213-x ≤4 29. ???>-<-21312x x ???>-≤-01202x x ??? ??>-≤--x x x x 22 1 58)2(3 ???+<->-22413x x x 3?????+-<>+23201x x x ?????->+≥--13 214)2(3x x x x ???<+≤+53201x x ?? ?>-<-2128 23x x 2x 5 3(x 2) 3( x 2) 4 5x x 1 x 3x 1 2 (x 1) 5x 4 x 1 2x 1 2 3 3x 1 2( x 1) 2( x 1) 4x 1 . 1 2x 3 x 5x 4x 1 x 5 1 2x 3x 2 4x 2x 1 x 4x 1 5. 3x 1 0 2 5x 0 2x 1 x 4 x 2 4( x 1) x 2 3x 8 2 0.5x 0.2x 2. 3 1 2x 3 x 5x 4x 1 1 4, x 2. x 5 1 2x, 3x 2 4x. 2x 1 x, x 2 4x 1. x 5 1 x, 3 3 1 x 1 x . 48 3x 1 5(x 1) 19. 4 6 5x x 6 3 3 3( x 1) 5x 4 x 1 2x 1 2 3 2x 5 3(x 2) x 1 x 2 3 x 3 x 2 4, 1 -(x 2) 2x 1 3 x 1 1 2x x 8 4x 1 3 2x 270 W ------ W 1 3x 25. 1 2x , x 1. 2x 1 3 29. 1 x 2 x 2 0 2x 1 0 1 5 x 2x 2 x 3(x 2) 4 1 2x x 1 3 x 1 0 2x 3 5 3x 2x 5-7x 2x 4 1 4(x。0.5 2x 1 x x 5 3(1 x) 2(x x 3 x 4 0.5 0.2 9) 14 2x 3 0 41. 3x 2 0 2x 3 7 5x 6 9 x i 1) 1 3x 2 2x 2x 7 x 1 3 43. 2 1 x 3x x 6 5 5 5x x 3x 1 3x 2 x 8 2(x 1) 4x 1 1. ⎩ ⎨⎧-≤+>+145321x x x x 31422x x x ->⎧⎨<+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩ 5. 230320x x -<⎧⎨+>⎩ 23182x x x >-⎧⎨-≤-⎩ 253(2)12 3x x x x +≤+⎧⎪-⎨<⎪⎩ ⎪⎩⎪⎨⎧+≥--<+-132 15423x x x x x )( 9. ⎪⎩⎪⎨⎧-≤-+>+31 22 14513x x x x )( ⎪⎩⎪⎨⎧>+-≥+x x x x 4121213)()( ⎪⎩⎪⎨⎧+<-<->+412052013x x x x . ⎪⎩ ⎪ ⎨⎧+<++≤--->+3 .22.05.02832)1(42x x x x x x ⎩⎨⎧-≤+>+145321x x x x 314,2 2.x x x ->⎧⎨<+⎩ 230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21, 24 1.x x x x >-⎧⎨+<-⎩ 2 51,3311.48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩ 19. 3(2)451312 x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1)2(1)4x x x x +≥-⎧⎨+>⎩ ⎪⎩⎪⎨⎧-≥-->+356634)1(513x x x x ⎪⎩⎪⎨⎧-≤-+>+3122145)1(3x x x x ⎪⎪⎩⎪⎪⎨⎧-<-+<-.3212 112)2(31x x x x . 253(2)123x x x x +≤+⎧⎪-⎨<⎪⎩ 25. ()324,12 1.3 x x x x --≥⎧⎪⎨+>-⎪ ⎩ ⎩⎨⎧≤+-<+51148x x x 270≤523x -≤1 -1<213-x ≤4 初一一元一次不等式组,计算题,60道,有答案 X+2<8 (X<6) 2X+4<0 (X<-2) 1/2(X+8)-2>0 (X>-4) 5X-2≥3(X+1)(x≥2.5) x-4 < 2x+1 (x>-5) 3x+14 > 4(2x-9) ( x<23/5) 3x-7≥4x-4 (-3≥x) 2x-3x-3<6 (x>-9) 0.4(x-1)≥0.3-0.9x (x≥7/13) x-4 < 2x+1 (x>-5) 2x-6 < x-2 3×10x<500 7(X+3)>98 2x-3x+3<6 2x-3x+1<6 2x-3x+3<1 2x-19<7x+31 3x-2(9-x)>3(7+2x)-(11-6x) 2(3x-1)-3(4x+5)≤x-4(x-7) 2(x-1)-x>3(x-1)-3x-5 15-(7+5x)≤2x+(5-3x) 2X+3>0 -3X+5>0 5X+6<3X 4(2X-3)>5(X+2) 2X+4<0 5X-2≥3(X+1) 2(X-3)≤4 5m-3>0 2x-3(x-1) > 6 6x-3(x-1) ≤12-2(x+2) 3(1-3x) < 4(x-1) 8-7x+1 > 2(3x-2) 3x+14 > 4(2x-9) 3-3m<-2m 5x+3x>2 -3y+9<7 (3+8)x>6 5-3/1 x>5 11x-5x>3 -3a-9a>11 -4a+9>6 33x+33<1 5b-9<9b 6x+8>3x+8 3x-7≥4x-42x-19<7x+31.3x-2(9-x)>3(7+2x)-(11-6x).2(3x-1)-3(4x+5)≤x-4(x-7).2(x-1)-x>3(x-1)-3x-5. 3[y-2(y-7)]≤4y. 15-(7+5x)≤2x+(5-3x). 3*10x<500 3*10(x+1)>500 7(x+3)>98 7x<98 2X+3>0 -3X+5>0 2X<-1 (1)2X-4(一)≤X+2 与 X≥3 解集为3≤X≤6 (2)2X-1>1 与 4-2X≤0 解集为无解(3)3X+2>5 与 5-2≥1 解集为1<X≤2 (4)X﹣1<2 与 2X+3>2+X 解集为-1<X<3(5)X+3>1 与X﹢2(X-1)≤1 解集为-2<X≤1 (6)2X+1≤3 与X>-3 解集为1≤X>-3(7)2X+5>1 与3X+7X≤10 解集为1≥X>2 (8)2X-1>X+1 与 X+8<4X-1 解集为X>3(9)1-2(X-1)≤5与2/(3X-2)<X+1/2解集为-1≤X<3 (10)2X≤4+X 与 X+2<4X-1解集为1<X≤4 (11)2-X>0 与 2/(5X+1)+1≥3/(2X-1)解集为-1≤X<2 (12)1-X<0 与 2/(X-2)<1 解集为1<X<4 (13)2-X<3 与 2-X≥0 解集为2≥X>1 (14)2X+10>-5 与 6X-7≥10 解集为X>17/6 (15)6X+6>8 与 3X+10<5 解集为-(3/5)>X>-3 (16)6X+6X24 与 10X+(1/2)X<-42 解集为无解 (17)24X-20X>4 与 8X+4X≤24解集为2≥X>1 (18)9X-5X<8 与 15X+5X>80 解集为无解 (19)X+X≤1 与 2X+(1/2)X>100 解集为无解 (20)2011X-2012X≤1 与 2013X-2012X≥1 解集为1≤X (21)4X-X>6 与 10X+5X<15 解集为无解 (22)-5X-6X≤-22 与5X-9X≥24 解集为无解(23)(1/5)X+(1/5)X>2/5 与 X+10X>22 解集为X>2 (24)55X+55X<220 与 66X+10X<38 解集为X<1/2 (25)70X+1≤71 与 53X-13X≤40 解集为X≤1 (26)X+1<7 与 X-1>10 解集为无解 (27)5X+5>5 与 2X+3X>9 解集为X>9/5 (28)85X-5X<8 与50X+30X<5 解集为X<1/16 (29)2X≤14 与 6X<6 解集为X<1 (30)15X+15≥30 与 6X-8X≥4 解集为-2≥X≥1 (31)2X≥160 与 4X≥316 解集为X≥80 (32)35X-27X>136 与 20X+20X<800解集为20>X>17(33)55X≤165 与 56X>112 解集为2<X≤3 (34)20X+18X≥76 与2X≥2 解集为X≥2(35)59X+X>600 与 55X+35X<1350 解集为10<X<15 (36)60X<120 与 5X+5X<10 解集为X<1 (37)100X<20X+1200 与 2X<30X+10 解集为X<5/14 ((38)50X≥100 与 50X≥50 解集为X≥1 一元一次不等式组 100道计算题 ------------------------------------------作者xxxx ------------------------------------------日期xxxx 1. ⎩⎨⎧-≤+>+145321x x x x 31422x x x ->⎧⎨<+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩ 5. 230320x x -<⎧⎨+>⎩ 23182x x x >-⎧⎨-≤-⎩ 253(2) 12 3x x x x +≤+⎧⎪ -⎨<⎪⎩ ⎪⎩⎪ ⎨⎧+≥--<+-1321 5423x x x x x )( 9. ⎪⎩⎪⎨⎧-≤-+>+3122 14513x x x x )( ⎪⎩⎪⎨⎧>+-≥+x x x x 4121213)()( ⎪⎩⎪⎨⎧+<-<->+412052013x x x x . ⎪⎩ ⎪ ⎨⎧+<++≤--->+3 .22.05.02832) 1(42x x x x x x ⎩⎨⎧-≤+>+145321x x x x 314,2 2.x x x ->⎧⎨<+⎩ 230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21,24 1. x x x x >-⎧⎨+<-⎩ 2 51,3311.48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩ 19. 3(2)451312 x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1)2(1)4x x x x +≥-⎧⎨+>⎩ ⎪⎩⎪⎨⎧-≥-->+356634)1(513x x x x 1.3(2x+5)<2(4x+6) 2.10-4(x-3)≤2(x-2) 3.3x-2(9-x)>3(7+2x)-(11-6x) 4.2(3x-1)-3(4x+5)≤x-4(x-7) 5.2(x-1)-x>3(x-1)-3x+5 6.3[y-2(y-7)]≤4y 7.15-(7+5x)≤2x+(5-3x) 8.2(x-4)-3<1-3(x-2) 9. 10.0.5x+3(1+0.2x)>0.4x-0.6 11. 12. 13.7(4-x)-2(4-3x)<-4x 14. 15. 16.3[x-2(x-2)]>x-3(x-3) 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27.28. 29.4≤ <7 30.2x-1 ≤x-5≤4 - 31. 32. 33. 34. 35.2x<1-x≤x+5 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76.77. 78. 79. 80. 81. 82. 83. 84. 85. 86. 87. 88. 89. 90. 91. 92. 93. 94. 95. 96. 97. 98. 99. 100. 1 2 3 4 5 6 7 8 9 10 x>32 x ≥133 x<-4 x ≥-15 x>4 y ≥6 x ≥34 x<185 y ≤35 x>-367 11 12 8 19 20 x ≥35 x ≤9 x<-203 y<3 x<95 x<3 x<65 x>152 x ≥-572 y>338 21 22 23 24 25 26 27 28 29 30 x>12 x>6 -6 1 2x 3 x 3x 1 4 1. 5x 4x 1 2x x 2 2x 3 0 2x 3 2x 5 3(x 2) (x 2) 4 5x 5. 3x 2 0 x 1 8 2x x 1 2 x 3 x 1 x 2 3x 1 x 5 1 2x 3x 2 4x 2x 1 x x 2 4x 1 (x 1) 5x 4 x 1 2x 1 2 3 3x 1 2( x 1) 2( x 1) 4x 3x 1 0 2 5x 0 2x 1 x 4 x 2 4( x 1) x 2 3x 8 2 0.5x 0.2x 2. 3 1 2x 3 x 5x 4x 1 3x 1 4, 2x x 2. 3(x 2) 4 5x 3x 1 2(x 1) 3x 1 5( x 1) 19. x 1 x 3x 1 2 2(x 1) 4x 4 - 6 5x -x 6 3 3 2x 3 0 x 5 1 2x, 3x 2 0 3x 2 4x. 2x 1 x, x 2 4x 1. x 5 1 x, 3 3( x 1) 5x 4 x 1 2x 1 2 3 1 -(x 2) 2x 1 3 x 1 1 2x 2 3 . 2x 5 3(x 2) x 1 x 2 3 x 3 x 2 4, 25. 1 2x , x 1. 3 x 8 4x x 1 5 1 3 2x 270 W W 1 5 3x 1 2 2x 43. 7 x 2 1 3 5x 3x 1 3 2 3x 2 2(x 1) 3x x 6 5 5 x x 8 4x 1 3 3 2x 1 3 29. 1 x 2 x 2 0 2x 1 0 x 3(x 2) 8 1 5 x 2x 2 3x 1 4 2x x 2 x 1 0 x 3(x 2) 4 3 x 2 - 1 2x x 2 x 1 3 3 x 1 0 3x 2 8 2x 3 5 2x 1 2 5-7x 2x 4 1 4(x。0.5 2x 1 x x 5 3(1 x) 2(x x 3 x 4 0.5 0.2 9) 14 2x 3 0 41. 3x 2 0 2x 3 7 5x 6 9 1 3x 2 2x 一元一次不等式组100道计算练 习题-(总5页) 1. ⎩⎨⎧-≤+>+1 45321x x x x 31422x x x ->⎧⎨<+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩ 5. 230320x x -<⎧⎨+>⎩ 23182x x x >-⎧⎨-≤-⎩ 253(2)123x x x x +≤+⎧⎪-⎨<⎪⎩ ⎪⎩⎪⎨⎧+≥--<+-132 15423x x x x x )( 9. ⎪⎩⎪⎨⎧-≤-+>+3122 14513x x x x )( ⎪⎩⎪⎨⎧>+-≥+x x x x 4121213)()( ⎪⎩⎪⎨⎧+<-<->+412052013x x x x . ⎪⎩ ⎪ ⎨⎧+<++≤--->+3 .22.05.02832)1(42x x x x x x ⎩⎨⎧-≤+>+145321x x x x 314,2 2.x x x ->⎧⎨<+⎩ 230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21, 24 1.x x x x >-⎧⎨+<-⎩ 2 51,3311. 48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩ 19. 3(2)451312 x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1)2(1)4x x x x +≥-⎧⎨+>⎩ ⎪⎩⎪ ⎨⎧-≥-->+356634)1(513x x x x ⎪⎩⎪⎨⎧-≤-+>+3122145)1(3x x x x ⎪⎪⎩⎪⎪⎨ ⎧-<-+<-.3212 112)2(3 1x x x x . 253(2)123x x x x +≤+⎧⎪-⎨<⎪⎩ 25. ()324,12 1.3 x x x x --≥⎧⎪⎨+>-⎪ ⎩ ⎩⎨⎧≤+-<+51148x x x 270≤ 523x -≤1 -1<2 1 3-x ≤4 29. ⎩⎨⎧>-<-21312x x ⎩⎨⎧>-≤-01202x x ⎪⎩⎪ ⎨⎧>-≤--x x x x 221 58)2(3 ⎩⎨⎧+<->-22413x x x 3⎪⎩⎪⎨⎧+-<>+23201x x x ⎪⎩⎪⎨⎧->+≥--13214)2(3x x x x ⎩⎨⎧<+≤+53201x x ⎩⎨⎧>-<-212823x x 37. ⎪⎩⎪⎨⎧<---≥5.0)1(431427-5x x x 512+≤- 一元一次不等式组100道计算题 65058(总9页) --本页仅作为文档封面,使用时请直接删除即可-- --内页可以根据需求调整合适字体及大小-- 1. ⎩ ⎨⎧-≤+>+145321x x x x 31422x x x ->⎧⎨<+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩ 5. 230320x x -<⎧⎨+>⎩ 23182x x x >-⎧⎨-≤-⎩ 253(2)123x x x x +≤+⎧⎪-⎨<⎪⎩ ⎪⎩⎪⎨⎧+≥--<+-132 15423x x x x x )( 9. ⎪⎩⎪⎨⎧-≤-+>+3122 14513x x x x )( ⎪⎩⎪⎨⎧>+-≥+x x x x 4121213)()( ⎪⎩⎪⎨⎧+<-<->+412052013x x x x . ⎪⎩ ⎪ ⎨⎧+<++≤--->+3 .22.05.02832)1(42x x x x x x ⎩⎨⎧-≤+>+145321x x x x 314,2 2.x x x ->⎧⎨<+⎩ 230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21,24 1.x x x x >-⎧⎨+<-⎩ 2 51,3311.48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩ 19. 3(2)451312 x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1)2(1)4x x x x +≥-⎧⎨+>⎩ ⎪⎩⎪⎨⎧-≥-->+356634)1(513x x x x ⎪⎩⎪⎨⎧-≤-+>+3122145)1(3x x x x ⎪⎪⎩⎪⎪⎨ ⎧-<-+<-.3212 112)2(3 1x x x x . 253(2)123x x x x +≤+⎧⎪-⎨<⎪⎩ 25. ()324,12 1.3 x x x x --≥⎧⎪⎨+>-⎪ ⎩ ⎩⎨⎧≤+-<+51148x x x 270≤ 523x -≤1 -1<2 1 3-x ≤4 1. 1 + 2x > 3 + x 5x<4x-\ x-5>l + 2x < 3x + 2<4x 2x-3<0 3x + 2>0 7. 2^ + 5 < 3(x + 2) x-1 < - 2 3 一元一次不等式组计算题 r3x-l>4 2x 3(x+l)>5x + 4 x— 1 2x — 1 ------ < ----------- I 2 " 3 3x + l>2(x-l) 10. < 2(x + l)>4x 3x +1 > 0 11. < 2 - 5x < 0 2x — 1 v x + 4 x + 2>-4(x-l) 12. < x - 2 < 3x + 8 2 + O.5x < O.2x +2.3 1 + 2x > 3 + x 5x < 4x -1 r3x-l>4, 2x < x + 2. 2x-3<0 3x + 2 > 0 x-5 > 14-2x. 3x + 2 < 4x. 3X + 1 V 5(x — l) 21 r ' word ・ 3(x+ 1) V 5X + 4 22・ XII A 2XI1 ‘ J I —J I - 2x V 1 — 3(x — 2) + 4c5x 卩— — x + 5 :> 1 — h A 3 18・ ・3 1 N — A ——・「3x + l lv 2(x 11) 一 23. V x — 1 1 —2x ------- <----------- 2 3 x — 3(x — 2)\4, 25. 1 + 2x t ------ > x-1. 3 3-2x 27. OW—z一W1 29.丹-1<3 l-x>2 2x + 5 < 3(x + 2) 24. < X-1 26. 30. \ + 8<4x-l x+l<5 3x-l 28. -]V ° W4 2x-l>0 1. ⎩⎨ ⎧-≤+>+145321x x x x 314 22 x x x ->⎧⎨ <+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩ 5. 230 320x x -<⎧⎨+>⎩ 23 182x x x >-⎧⎨ -≤-⎩ 253(2)12 3x x x x +≤+⎧⎪ -⎨<⎪⎩ ⎪⎩⎪ ⎨⎧+≥--<+-132 1 5423x x x x x )( 9. ⎪ ⎩⎪⎨⎧-≤-+>+31 22 14513x x x x )( ⎪⎩⎪⎨ ⎧>+-≥+x x x x 4121213)( )( ⎪⎩ ⎪ ⎨⎧+<-<->+4120520 13x x x x . ⎪⎩ ⎪ ⎨⎧+<++≤--->+3.22.05.02832)1(42x x x x x x ⎩ ⎨ ⎧-≤+>+145321x x x x 314, 2 2.x x x ->⎧⎨<+⎩ 230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21, 24 1. x x x x >-⎧⎨+<-⎩ 2 51,3311.48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩ 19. 3(2)451312 x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1) 2(1)4x x x x +≥-⎧⎨ +>⎩ ⎪⎩⎪ ⎨⎧-≥-->+35663 4)1(513x x x x ⎪⎩⎪⎨⎧-≤-+>+3122145)1(3x x x x ⎪⎪⎩⎪ ⎪⎨⎧-<-+<-.3212 112)2(3 1x x x x . 253(2)12 3x x x x +≤+⎧⎪ -⎨<⎪⎩ 25. ()324, 12 1.3 x x x x --≥⎧⎪⎨+>-⎪ ⎩ ⎩⎨⎧≤+-<+51148x x x 270≤523x -≤1 -1<213-x ≤4 1. ⎩⎨ ⎧-≤+>+1 45321x x x x 31422 x x x ->⎧⎨ <+⎩ 512324x x x x ->+⎧⎨+<⎩ 21241x x x x >-⎧⎨+<-⎩ 5. 230320x x -<⎧⎨+>⎩ 23182x x x >-⎧⎨-≤-⎩ 253(2)12 3x x x x +≤+⎧⎪-⎨<⎪⎩ ⎪⎩⎪⎨⎧+≥--<+-132 15423x x x x x )( 9. ⎪⎩⎪⎨⎧-≤-+>+31 22 14513x x x x )( ⎪⎩⎪⎨⎧>+-≥+x x x x 4121213)()( ⎪⎩⎪⎨⎧+<-<->+412052013x x x x . ⎪⎩ ⎪ ⎨⎧+<++≤--->+3 .22.05.02832)1(42x x x x x x ⎩⎨⎧-≤+>+145321x x x x 314,2 2.x x x ->⎧⎨<+⎩ 230320x x -<⎧⎨+>⎩ 512,324.x x x x ->+⎧⎨+<⎩ 21, 24 1.x x x x >-⎧⎨+<-⎩ 2 51,3311. 48x x x x ⎧+>-⎪⎪⎨⎪-<-⎪⎩ 19. 3(2)451312 x x x x x -+<⎧⎪⎨--≥+⎪⎩ 312(1)2(1)4x x x x +≥-⎧⎨+>⎩ ⎪⎩⎪⎨⎧-≥-->+356634)1(513x x x x ⎪⎩⎪⎨⎧-≤-+>+3122145)1(3x x x x ⎪⎪⎩⎪⎪⎨⎧-<-+<-.3212 112)2(31x x x x . 253(2)123x x x x +≤+⎧⎪-⎨<⎪⎩ 25. ()324,12 1.3 x x x x --≥⎧⎪⎨+>-⎪ ⎩ ⎩⎨⎧≤+-<+51148x x x 270≤523x -≤1 -1<213-x ≤4(完整版)一元一次不等式组100道计算题
一元一次不等式组100道计算题
一元一次不等式组100道计算题
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一元一次不等式组100道计算题
一元一次不等式组100道计算题
一元一次不等式组100道计算题