Math & Science ⇒ wrap text in flalign

[jonathan webley]

This equation is part of a set of aligned equations:

Code: Select all

\documentclass[a4paper]{article}
\usepackage{amsmath}
\begin{document}
\begin{flalign*}
& \text{Solution:} & 6\left(3x + \frac{1}{2} \right) &= 6\left(\dfrac{x}{2} + \dfrac{1}{3}\right) + 6\left(\dfrac{x}{2} + \dfrac{1}{3}\right) + 6\left(\dfrac{x}{2} + \dfrac{1}{3}\right) && \text{Multiply both sides by 6 to clear the fractions} \\
\end{flalign*}
\end{document}

The text at the end of the line flows off the page. However, because of the fractions, the equation is over two lines. So can I get the text "Multiply..." to have a line break, something like:

Code: Select all

Solution: 6                      Multiply...
          2                      ...the fractions

[jonathan webley]

I finally worked this out - I can use a parbox:

Code: Select all

& \textbf{Solution:} & 6\left(3x + \HALF \right) &= 6\left(\dfrac{x}{2} + \dfrac{1}{3}\right) && \parbox[m]{1.5in}{\textit{Multiply both sides by } 6 \textit{ to clear the fractions}} \\