There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ x - eln(x) + (x - \frac{e}{2})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 2x - eln(x) - \frac{1}{2}e\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 2x - eln(x) - \frac{1}{2}e\right)}{dx}\\=&2 - 0ln(x) - \frac{e}{(x)} - \frac{1}{2}*0\\=& - \frac{e}{x} + 2\\ \end{split}\end{equation} \]

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