Question

-22 ¡Ü 3x -9 ¡Ü-4

Answer 1

The question is legible in GB2312 as

-22 ≤ 3x-9 ≤ -4
Take the first part:
-22 ≤ 3x-9
-22+9 ≤ 3x -9+9
-13/3 ≤ x

For the second part:
3x-9 ≤ -4
3x-9+9 ≤ -4+9
3x ≤ 5
x ≤ 5/3

Therefore the solution is
-13/3 ≤ x ≤ 5/3