急求不等式[组]40道

来源:百度知道 编辑:UC知道 时间:2024/05/16 11:28:52
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1.{5x-3>x-4 2.x-2(x-1)<=3 3.(3x-1)/4>3
1+2/3-x<=x-1/3 (2x+5)/3>x (3x-1)/4<=7

4.2x-3>0 5.2-5x<=3(1-x)
4-3x<0 (x+2)/3>2x-1
2x-5<=4x+7

答案:1.X>=1 2.-1<=X<5 3.13/3<X<=29/3 4.X>3/2
5.-1/2<=X<1