Gjej E (complex solution)
\left\{\begin{matrix}E=-\frac{\sqrt{-14x-45}}{cx}\text{, }&c\neq 0\text{ and }x\neq 0\\E\in \mathrm{C}\text{, }&x=-\frac{45}{14}\text{ and }c=0\end{matrix}\right.
Gjej c (complex solution)
\left\{\begin{matrix}c=-\frac{\sqrt{-14x-45}}{Ex}\text{, }&E\neq 0\text{ and }x\neq 0\\c\in \mathrm{C}\text{, }&x=-\frac{45}{14}\text{ and }E=0\end{matrix}\right.
Gjej E
\left\{\begin{matrix}E=-\frac{\sqrt{-14x-45}}{cx}\text{, }&c\neq 0\text{ and }x\leq -\frac{45}{14}\\E\in \mathrm{R}\text{, }&c=0\text{ and }x=-\frac{45}{14}\end{matrix}\right.
Gjej c
\left\{\begin{matrix}c=-\frac{\sqrt{-14x-45}}{Ex}\text{, }&E\neq 0\text{ and }x\leq -\frac{45}{14}\\c\in \mathrm{R}\text{, }&E=0\text{ and }x=-\frac{45}{14}\end{matrix}\right.
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