解不等式组,并把解集在数轴上表示出来.  

解不等式组,并把解集在数轴上表示出来.
 

答案

 解:由①得:x≤1 
       
由②得:x-2
       
综合得:-2x≤1
        
在数轴上表示这个解集(略)

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