[Tex/LaTex] array environment with tags/labels

Question

I try to come up with a couple of formulas which should be aligned according to a relation symbol but also to the left. Have a look at the following example:

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{align}
T &= x + y \\
T_{\text{total}} &= y
\end{align}
%
\[
\begin{array}{lcl}
T &=& x + y \\
T_{\text{total}} &=& y
\end{array}
\]
\end{document}

While using the align environment each line is tagged with a number but the terms on the left hand side are aligned to the right. I tried to solve that by using an array environment where I can easily control how the left and right hand side of an equation should be aligned, but know I cannot tag the lines anymore.

Does someone has an idea how to align equations to a symbol and at the same time control the alignment of the left and right hand side of the equations?

Answer 1

A solution that uses alignat:

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{alignat}{2}
&T &&= x + y \\
&T_{\text{total}} &&= y
\end{alignat}
\end{document}