TeX Quellcode:
\begin{array}{rclcl} -(2x-1) & \geq & 1+3x \cr -2x+1 & \geq & 1+3x & \vert & -3x-1 \cr -5x & \geq & 0 & \vert & :\left(-5\right) \cr x & \leq & 0 \end{array}