How to write a list of formulas?

I am writing a list of physical formulas, so I create this MWE:

\documentclass[12pt,a4paper] \usepackage \usepackage[english] \usepackage[utf8] \usepackage[T1] \usepackage \usepackage[top=1cm,bottom=1cm,left=1cm,right=1cm,marginparwidth=1.75cm] \begin \section* \begin(2) \task \textbf $formula$ \task \textbf $\dfrac$ \task \textbf $f(x)=x+523134121\displaystyle\prod$ \task \textbf $\dfrac<\displaystyle\lim_\vec x>$ \task \textbf $abvddcdd$ \end \section* \begin(2) \task \textbf $formula$ \task \textbf $another \text$ \end \end

Example

I have many more formulas, however I find it difficult to continue in this way for five reasons:

  1. I do not know how to correctly express the disposition of the items (two columns? Three?);
  2. There are times when two formulas, one on top of the other, are stuck together, and the visual aspect is bad;
  3. At most each element has two columns: Description. $formula$ . Write the text in bold for each item and $. $ are a waste of time;
  4. I do not know how to continue the numbering automatically between each section (I could change the counter but it is another waste of time because if I add a formula in the middle of the others I must manually change the value);
  5. There are some formulas that have no description, only $. $ .

Does anyone know how to reduce the time spent writing each item homogeneously?

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