Making two equations left-aligned

Question

I'm trying to use a single label for two equations. I use this:

\begin{equation} 
\begin{aligned}    
T_{Up} = \max \{T_{Up\_min}, u\}  \\
T_{Low} = \min \{T_{Low\_min}, l \}
\label{Eq2}
\end{aligned}  
\end{equation}

The problem is that these two equations are now center-aligned. How can I make them left-aligned?

Answer 1

Recommended version: they are neither centered, nor left-aligned, nor right-aligned. The equal signs are aligned.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
\begin{aligned}
T_\mathrm{Up} &= \max \{T_{\mathrm{Up}\_\min}, u\}  \\
T_\mathrm{Low} &= \min \{T_{\mathrm{Low}\_\min}, l \}
\label{Eq2}
\end{aligned}
\end{equation}
\end{document}

If you want them to be strictly left aligned, then (but please don't do this! Your readers will be grateful).

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation}
\begin{aligned}
&T_\mathrm{Up} = \max \{T_{\mathrm{Up}\_\min}, u\}  \\
&T_\mathrm{Low} = \min \{T_{\mathrm{Low}\_\min}, l \}
\label{Eq2}
\end{aligned}
\end{equation}
\end{document}

Answer 2

Hope you are searching for the option fleqn

\documentclass{article}
\usepackage[fleqn]{amsmath}
\begin{document}

\begin{equation}
\begin{aligned}
T_\mathrm{Up} &= \max \{T_{\mathrm{Up}\_\min}, u\}  \\
T_\mathrm{Low} &= \min \{T_{\mathrm{Low}\_\min}, l \}
\label{Eq2}
\end{aligned}
\end{equation}
\end{document}