TeX Quellcode:
\begin{array}{rclll} 2 \, (3x-1) &=& 3(2+5x)+1 \cr 6x-2 &=& 6+15x+1 \cr 6x-2 &=& 15x+7 & \vert & -15x+2 \cr 6x-15x &=& 7+2 \cr -9x &=& 9 & \vert & :(-9) \cr x &=& -1 \end{array}