`-5- (24 - x) = -11`
`⇔24 - x = - 5 - (-11)`
`⇔24 - x = 6`
`⇔x = 24 - 6`
`⇔x = 18`
`- - -- - - `
`(x - 1)(2x-14) = 0`
`⇔` \(\left[ \begin{array}{l}x -1 = 0\\2x - 14 = 0\end{array} \right.\)
`⇔` \(\left[ \begin{array}{l}x=1\\2x = 14\end{array} \right.\)
`⇔` \(\left[ \begin{array}{l}x=1\\x=7\end{array} \right.\)
`- - - - - - - - -`
`-3 < x < 0`
`⇒x ∈ {-2 ; -1 }`
` - -- - -- -`
`-4 <= x <=- 2`
`x ∈ { -4 ; -3 ; -2 }`