\(2x+2x+1< 2x-9\)
\(\Leftrightarrow2x+1< -9\)
\(\Leftrightarrow2x< 9-1\Leftrightarrow2x< 8\)
\(\Leftrightarrow2x:2< 8:2\Leftrightarrow x< 4\)
\(4x+1< 2x-9\)
\(\Leftrightarrow4x+1-2x+9< 0\)
\(\Leftrightarrow2x+10< 0\)
\(\Leftrightarrow2x< -10\)
\(\Leftrightarrow x< -5\)