There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{-x}{5} + \frac{13ln(2 - 5x)}{25}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{-1}{5}x + \frac{13}{25}ln(-5x + 2)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{-1}{5}x + \frac{13}{25}ln(-5x + 2)\right)}{dx}\\=&\frac{-1}{5} + \frac{\frac{13}{25}(-5 + 0)}{(-5x + 2)}\\=&\frac{-13}{5(-5x + 2)} - \frac{1}{5}\\ \end{split}\end{equation} \]

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