TeX Quellcode:

\begin{array}{rclcl} \mathbb{D} &=& \mathbb{R} \cr \cr (2x-11)\cdot 10 & \geq & -67+4x-8(4-2x) \cr 20x-110 & \geq & -67+4x-32+16x \cr 20x-110 & \geq & -99+20x & \vert & -20x \cr -110 & \geq & -99 \cr \cr \mathbb{L} &=& \emptyset \end{array}