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

Your problem has not been solved here? Please take a look at the  hot problems ！