{2/3(3-x)+2<-2 -2/3(x+5)-1<5
问题描述:
{2/3(3-x)+2<-2 -2/3(x+5)-1<5
答
2/3(3-x)+22/3(3-x)3-xx>9
-2/3(x+5)-1-2/3(x+5)2/3(x+5)>-6
x+5>-9
x>-14
所以x>9