-7 & lt; 4x-5 & lt; =-3 or 3
The solution is-1/2 < x <; 1/2 or 2
|x+ 1|+|x-2|≥5
When x
-x- 1-x+2 & gt; =5
Get x
When-1
x+ 1-x+2 & gt; =5
X has no solution at present.
When x>2 is definitely worth going.
x+ 1+x-2 & gt; =5
Solve x & gt=3
To sum up, x x < =-2 or x & gt=3.