$\begin{array}{c}8899:11=809\\ \underset{‾}{-88}\\ 99\\ \underset{‾}{-99}\\ 0\end{array}\backslash def\backslash arraystretch\{1.25\}\; \backslash begin\{array\}\{l\}\backslash ;\backslash ;\backslash ;8899:11=809\backslash \backslash \backslash underline\{-88\}\backslash \backslash \backslash ;\backslash ;\backslash ;\backslash ;\backslash ;\backslash ;99\backslash \backslash \backslash ;\backslash ;\backslash ,\backslash ;\backslash underline\{-99\}\backslash \backslash \backslash ;\backslash ;\backslash ;\backslash ;\backslash ,\backslash ;\backslash ;\backslash ;\backslash ;0\backslash end\{array\}$

$-9\cdot 3+3^3=-27+27=0-9\backslash cdot3+3^3=-27+27=0$