# Translate equation without changing label

I would like to know how I can translate the equation without changing the label's position. Using \hspace{2cm} occurs what is in the image below. The code I used is:

\documentclass[10pt,leqno,  a4paper]{report}
\usepackage[all, cmtip]{xy}
\usepackage{amscd,verbatim}
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{leftidx}
\usepackage{amsfonts}
\usepackage{calligra}
\usepackage{sectsty}
\usepackage{lipsum}
\usepackage{fancyhdr}
\usepackage{imakeidx}
\usepackage[nottoc]{tocbibind}
\usepackage{etoolbox}
\makeindex[program=makeindex, options={-s indexstyle.ist}]
\usepackage[colorlinks = true,
linkcolor = blue]{hyperref}
\chapterfont{\centering \large}
\sectionfont{\small}
\usepackage[top=3cm,bottom=3cm,left=4cm,right=3cm]{geometry}
\pagestyle{fancy}
\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}{}}
\renewcommand{\chaptermark}[1]{\markboth{\thechapter\ #1}{}}
\fancyhf{} \fancyhead[LE,RO]{\thepage}
\fancyhead[C]{\rightmark}
\fancyhead[C]{\leftmark}
\renewcommand{\headrulewidth}{0pt}
\addtolength{\headheight}{5.0pt}
\usepackage[explicit]{titlesec}
\titleformat{\chapter}[display]
{\normalfont}{\centering\Large\chaptertitlename\ \thechapter}{25pt}
{\centering\LARGE\bfseries #1}
\titlespacing*{\chapter}
{-10pt}{25pt}{35pt}
\newcommand{\ssection}[1]{\section[#1]{\centering #1}}
\renewcommand{\theequation}{\thesection.\arabic{equation}}
\newenvironment{proof}{\smallskip \noindent{\bf Proof}: }
{\hfill \rule{0.25cm}{0.25cm}}
\newcommand\Id{\operatorname{Id}}

\begin{document}
\noindent Suppose $\phi:X \longrightarrow Y$ is a $b-$fibration of compact
manifolds with corners. Then set

\begin{eqnarray}
\ \ \ \ \mathcal{V}_\phi(X) =\left\{
\begin{array}{c}
V \in \mathcal{V}_b(X): V \hbox{ \ is tangent to each leaf of  \ } \phi
\hbox{ \ and the}\\
\hbox{ \   leaves of its restriction to each of the boundary faces of \ } X
\end{array}%
\right\}\index{$\mathcal{V}_\phi(X)$}
\end{eqnarray}%

\noindent Suppose $\phi:X \longrightarrow Y$ is a $b-$fibration of compact
manifolds with corners. Then set

\begin{eqnarray}
\hspace{2cm} \mathcal{V}_\phi(X) =\left\{
\begin{array}{c}
V \in \mathcal{V}_b(X): V \hbox{ \ is tangent to each leaf of  \ } \phi
\hbox{ \ and the}\\
\hbox{ \   leaves of its restriction to each of the boundary faces of \ } X
\end{array}%
\right\}\index{$\mathcal{V}_\phi(X)$}
\end{eqnarray}%

\end{document}

• your code sniped is out of context and can not be compiled. please extend it to complete small document beginning with with documentclass[...]{...} and ending by \end{document}. Nov 8 '17 at 12:23
• I put the bars "" \ \ \ \"" for the label not to overlap the equation. Nov 8 '17 at 12:42
• your original question has bunch of errors, inconsistency and strange solution, edited one mostly correct this but it is far away to be minimal ... :-(. you should exploit loaded packages! Nov 8 '17 at 12:46
• I'm still learning how to use latex. Nov 8 '17 at 12:49
• you are on good way and already show the progress. just continue ... happy tex-ing! Nov 8 '17 at 12:56

## 1 Answer

i suspect that you looking for something like this:

\documentclass[leqno]{article}
\usepackage{amsmath}

\usepackage{lipsum}
%-------------------------------- show page layout, only for test
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%

\begin{document}
\lipsum*[11]
$$\label{2.7.1} \cal V_\phi(X) = \left\{\begin{tabular}{@{}l@{}} V \in \mathcal{V}_b(X):\ V is tangent to each leaf of \phi and the\\ leaves of its restriction to each of the boundary faces of X \end{tabular}\right\} \index{\mathcal{V}_\phi(X)}$$
\lipsum*[11]
$$\label{2.7.1} \cal V_\phi(X) = \left\{\begin{tabular}{@{}l@{}} V \in \mathcal{V}_b(X):\ V is tangent to each leaf of \phi and the\\ leaves of its restriction to each of the boundary faces of X \end{tabular}\right\}$$
\end{document}

• Yes! Thak you so much, this works. Nov 8 '17 at 12:45