\ANG{
Bestimme die L"osungsmenge.

\begin{tabular}{ll}
(a) $(x + 13) + 15 = -37$\ \ \ \ \ &(b) $(x + 72) - 25 = -42$\\
(c) $(17 + x) + (-45) = -80$&(d) $(66 - x) +80 = 54$\\
(e) $(17 - x) - (-45) = -80$&
\end{tabular}

}
\LSG{
\begin{tabular}[t]{ll}
(a)  $\LL=\{-65\}$\ \ \ \ \ &(b) $\LL=\{-89\}$\\
(c)  $\LL=\{-52\}$&(d)  $\LL=\{92\}$\\
(e)  $\LL=\{142\}$&
\end{tabular}
}
