🚀 go-pugleaf

I would like to be able to describe a set of equations, occasionally
commenting the reason for a step.  \begin{eqnarray} and \end{eqnarray}
permit me to get the equal signs lined up (\begin{equation} would
center successive equations without lining up the equal signs).  I
would also like to have the reason for the step start on the left side
of the page, like any other text.  The following macro definition does
not quite do the job; it seems to restrict the text to the box containing
the equation array.  Does anyone know a better way?

	\def\EqComment#1{
		\lefteqn{\parbox{\textwidth}{#1}}
		\nonumber
	}

thanks,
bob walsh