diff --git a/4-4.pdf b/4-4.pdf
index e991dfe..7e91099 100644
Binary files a/4-4.pdf and b/4-4.pdf differ
diff --git a/4-4.tex b/4-4.tex
index 98a5bea..47db7d1 100644
--- a/4-4.tex
+++ b/4-4.tex
@@ -292,6 +292,25 @@ $\left(\begin{matrix}
 \end{matrix}\right)$
 $\Rightarrow\mathbb{L}=\{(1,4,0,1)\}$
 
+\item (-3)I zu III add
+$\left(\begin{matrix}
+1&-1&4&1\\
+0&0&2&3\\
+0&0&-7&-3
+\end{matrix}\right)$
+II zu III add
+$\left(\begin{matrix}
+1&-1&4&1\\
+0&0&2&3\\
+0&0&-5&0
+\end{matrix}\right)$
+$\frac{2}{5}$III zu II add
+$\left(\begin{matrix}
+1&-1&4&1\\
+0&0&0&3\\
+0&0&-5&0
+\end{matrix}\right)$
 
+II ist nun $0=3\Rightarrow\mathbb{L}=\{\}$
 \end{enumerate}
 \end{document}
\ No newline at end of file