There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 6(p + q)x + 6(m + n)(1 - x)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 6px + 6qx - 6mx + 6m - 6nx + 6n\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 6px + 6qx - 6mx + 6m - 6nx + 6n\right)}{dx}\\=&6p + 6q - 6m + 0 - 6n + 0\\=&6p + 6q - 6m - 6n\\ \end{split}\end{equation} \]

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