Решите уравнения задания 7 и 9

Решите задачу:

$(\frac{\sqrt p}{p-k}+\frac{1}{\sqrt k-\sqrt p}):\frac{\sqrt p}{k-p}=\frac{-\sqrt p+\sqrt k+\sqrt p}{k-p}*\frac{k-p}{\sqrt p}=\sqrt\frac{k}{p}$

$2x+10\geq0\\2x\geq-10\\x\geq-5\\\\4-x\ \textgreater \ 0\\x\ \textless \ 4\\\\\begin{cases}x+6\ \textgreater \ 0\\x-1\neq0\end{cases}\ \textless \ =\ \textgreater \ \begin{cases}x\ \textgreater \ -6\\x\neq1\end{cases}=\ \textgreater \ -6\ \textless \ x\ \textless \ 1;x\ \textgreater \ 1$