Question

6/x+1>=1怎么求,不能使用去分母.

Answer 1

您好：

6/（x+1）≥1
6/(x+1)-1≥0
(6-x-1)/(x+1)≥0
(5-x)/(x+1)≥0
（x-5）/(x+1)≤0
-1