TeX Quellcode:

\begin{array}{rclll}\dfrac{2z}{3}+\dfrac{-\sqrt{36i}+45}{9} &=& 5 &\vert& \cdot 9 \\6z-\sqrt{36i}+45 &=& 45 &\vert& -45+\sqrt{36i} \\6z &=& \sqrt{36i} \\6z &=& 6\sqrt{i} &\vert& :6 \\z &=& \sqrt{i}\end{array}