[tex] \huge\tt\boxed{\tt x \leqslant −20}[/tex]
Step-by-step explanation:
[tex] \looparrowright \sf4x+24 \leqslant −56[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf4x \leqslant −56 - 24[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf4x \leqslant −80[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf x \leqslant −80 \div 4[/tex]
[tex] \\ \\ [/tex]
[tex] \looparrowright \sf x \leqslant −20[/tex]