\begin{equation}\frac{x+6}{x+5}+\frac{x+10}{x+7}=0\end{equation}

\begin{equation}\frac{8}{x+3}=x+3\end{equation}

\begin{equation}\frac{7}{x}=\frac{x}{9}+\frac{9}{x}-(\frac{x}{7})\end{equation}

\begin{equation}\frac{2}{2x+9}=6-(\frac{3}{2x+7})\end{equation}

\begin{equation}\frac{x}{x-5}=\frac{5}{2}-(\frac{x-5}{x})\end{equation}

\begin{equation}4x+2=10-(\frac{5}{5x+7})\end{equation}