Aligning two equations, on the same line

I want to align two equations, one in the middle of the page and the other on the left hand side of the page.

$When\,\,t=1,\,C=10 \bigg)$ $$\implies 10=Ae^{-t},$$


I would like it to be essentially on the same line, but the first statement is a little higher than the last part of the equation.

• Could using a table be an acceptable solution? – ebosi Nov 30 '16 at 15:48
• @ebo , I'll have a look, whether that works. – Gurjinder Nov 30 '16 at 15:54
• Which equations? – Bernard Nov 30 '16 at 15:56
• Surely you don't what When or the ) to be in math mode? Words should never be set in math italic. – David Carlisle Nov 30 '16 at 15:56
• @DavidCarlisle , yeah, that is correct, how would format it so that 'when' is not in math mode? – Gurjinder Nov 30 '16 at 15:59

Maybe you mean one of these? I use flalign* and the eqparbox package:

\documentclass{article}
\usepackage[showframe]{geometry}%
\usepackage{mathtools}
\usepackage{eqparbox} %

\begin{document}

\begin{flalign*}
&\eqparbox{Lbox}{When\,\,$t=1,\,C=10 \bigg)$} & \implies 10 & =Ae^{-t}, &\hspace{\eqboxwidth{Lbox}}&
\end{flalign*}
%
\begin{flalign*} & & & & & \\
\intertext{Without \texttt{eqparbox}:}
& \text{When}\,\, t=1,\,C=10 \bigg) & \implies 10 & =Ae^{-t}, & & %
\end{flalign*}


\end{document}

A very simple (but not so elegant) way is to use tabularx environment. You create a table with 3 columns of the same width and then put the text in the first two, left aligned and centered respectively.

\documentclass{article}
\usepackage{amsmath}
\usepackage{tabularx}

\begin{document}
\begin{tabularx}{\textwidth}{>{\raggedright\arraybackslash}X>{\centering\arraybackslash}XX}
When $t=1,\,C=10 \bigg)$ & $\implies 10=Ae^{-t},$ &
\end{tabularx}
\end{document}