`2 3/11 . 1 1/12 . (-2,2) < x < (0,4 - 4/5) . (3/4 - 0,2)`
`VT = 25/11 . 13/12 . (-11/5)`
`= 325/132 . (-11/5)`
`= -65/12`
-------------------
`VP = (0,4 - 4/5) . (3/4 - 0,2)`
`= (2/5 - 4/5) . (3/4 - 1/5)`
`= -2/5 . 11/20`
`= -11/50`
$\text{Ta có:}$ `-65/12 < x < -11/50`
`-65/12 = -5,41(6)`
`-11/50 = -0,22`
$\Rightarrow$ `-5,41(6) < x < -0,22`
$\Rightarrow$ `x \in {-5 ; -4 ; -3 ; -2 ; -1}`
$\text{Vậy}$ `x \in {-5 ; -4 ; -3 ; -2 ; -1}`