[tex]\begin{cases}\cfrac{3x+5}{4} < \cfrac{x+1}{2}+1\\ \cfrac{x-4}{2} > \cfrac{2-x}{3}-1\end{cases}\Leftrightarrow \begin{cases}3x+5 < 2x+2+4\\ 3x-12 > 4-2x-6\end{cases}\Leftrightarrow \begin{cases}x < 1\\ 5x > 10\end{cases}\Leftrightarrow \\\Leftrightarrow \begin{cases}x < 1\\ x > 2\end{cases}\Rightarrow \varnothing[/tex]
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[tex]\begin{cases}\cfrac{3x+5}{4} < \cfrac{x+1}{2}+1\\ \cfrac{x-4}{2} > \cfrac{2-x}{3}-1\end{cases}\Leftrightarrow \begin{cases}3x+5 < 2x+2+4\\ 3x-12 > 4-2x-6\end{cases}\Leftrightarrow \begin{cases}x < 1\\ 5x > 10\end{cases}\Leftrightarrow \\\Leftrightarrow \begin{cases}x < 1\\ x > 2\end{cases}\Rightarrow \varnothing[/tex]
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