TeX Quellcode:
\begin{array}{rclll}-9+3\left(-8p+3\right)&=&-2\left(10p-2\right)+4\left(-1-p\right)\cr-9-24p+9&=&-20p+4-4-4p\cr-24p&=&-24p &\vert& +24p \cr 0&=&0 \cr\cr\mathbb{L}&=&\mathbb{R}\end{array}