Hi Herbert,
using some of your ideas, I've got what I wanted using a single row, 3 element array. It's almost all done with LyX with a minimum of Latex in-line code.
Question is, do you think it's terribly kludgy? See attached.
Thanks for all your help
Brian
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#LyX 1.3 created this file. For more info see http://www.lyx.org/ \lyxformat 221 \textclass article \begin_preamble \lhead{\hspace*{- .22\textwidth}Brian Williams} \chead{K0125938} \rhead{\flushright{\mbox{\hspace*{ 1.05\textwidth} MST209 03}}} \reversemarginpar \renewcommand{\headrulewidth}{0pt} \end_preamble \language english \inputencoding auto \fontscheme default \graphics default \paperfontsize default \spacing single \papersize Default \paperpackage a4 \use_geometry 0 \use_amsmath 0 \use_natbib 0 \use_numerical_citations 0 \paperorientation portrait \secnumdepth 3 \tocdepth 3 \paragraph_separation indent \defskip medskip \quotes_language english \quotes_times 2 \papercolumns 1 \papersides 1 \paperpagestyle fancy
\layout Standard
\begin_inset Marginal
collapsed false
\layout Standard
\align right
Q.
1) a)
\end_inset
We have the following system of equations:
\layout Standard
\begin_inset ERT
status Open
\layout Standard
\backslash
vspace{.25in}
\end_inset
\layout Standard
\begin_inset Tabular
<lyxtabular version="3" rows="1" columns="3">
<features>
<column alignment="block" valignment="top" width="10line%">
<column alignment="left" valignment="top" width="35line%">
<column alignment="right" valignment="top" width="50line%">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true"
usebox="none">
\begin_inset Text
\layout Standard
\end_inset
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true"
usebox="none">
\begin_inset Text
\layout Standard
\begin_inset Formula $\left\{ \begin{array}{rrrrrcr}
x_{1} & - & 3x_{2} & + & 2x_{3} & = & 1,\\
-4x_{1} & + & 6x_{2} & + & 2x_{3} & = & -8,\\
14x_{1} & - & 7x_{2} & - & 5x_{3} & = & 26\end{array}\right.$
\end_inset
\end_inset
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true"
rightline="true" usebox="none">
\begin_inset Text
\layout Standard
\begin_inset Formula $\begin{array}{r}
\refstepcounter{equation}(\theequation)\\
\refstepcounter{equation}(\theequation)\\
\refstepcounter{equation}(\theequation)\end{array}$
\end_inset
\end_inset
</cell>
</row>
</lyxtabular>
\end_inset
\the_end
