# itemize not aligning items Why are my 2 items not aligning properly?

\newtheorem{ex}{Exercise}

\begin{ex}
\textup{Consider the differential equation
\begin{align}
\label{eq3}
\frac{x}{y(x)}y'(x)+1=y(x)\,\textup{log}(x)
\end{align} with unknown quantity $y:(0,+\infty)\rightarrow\mathbb{R^*}$.
\begin{itemize}
\item Show that Equation \eqref{eq3} is a Bernoulli-type differential equation and that $z(x):=\frac{1}{y(x)}$ satisfies
\begin{align}
\label{eq4}
z'(x)-\frac{z(x)}{x}=-\frac{log(x)}{x}\ .
\end{align}
\item Find all the solutions to Equation \eqref{eq4} on (0,+\infty).
\end{itemize}}
\end{ex}\hfill\break

• align switches to display math which is usually centered. However, answering would be much easier if you explained what kind of alignment you expect. Mar 26, 2021 at 13:02
• i pasted the entire code, the second item appears more to the left than the first one Mar 26, 2021 at 13:07
• Welcome to TeX.SC..Please do post a MWE and a clear picture of your requirement to help you in better way... Mar 26, 2021 at 13:08
• Your question is not reproducible, the code causes an error for me. If you want some help, you need to post a minimum working example. Mar 26, 2021 at 13:08
• i posted a picture Mar 26, 2021 at 13:10

The misalignment is a consequence of

Find all the solutions to Equation \eqref{eq4} on (0,+\infty).


as \infty is a math-mode command. Compiling your code results in a classic Missing inserted error: never, ever ignore errors! TeX tries to recover but whatever PDF output you get is usually rubbish, as you've seen. Another couple of comments: • Don't use \textup{log} but rather \log: the latter has the correct operator spacing, and you need no explicit \, in front of it. • : is a relational symbol; for a puctuation colon as in this case use \colon. • Avoid align for single-line equations. • Avoid wrapping the whole environment content in \textup; use a theorem style which uses upright text from the very beginning. \documentclass{article} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsthm} \theoremstyle{definition} % predefined style with upright text \newtheorem{ex}{Exercise} \providecommand*{\coloneq}{\mathrel{\mathop:}=} \begin{document} \begin{ex} Consider the differential equation \begin{equation} \label{eq3} \frac{x}{y(x)} \, y'(x)+1=y(x)\log(x) \end{equation} with unknown quantityy\colon(0,+\infty)\rightarrow\mathbb{R}^*$. \begin{itemize} \item Show that Equation \eqref{eq3} is a Bernoulli-type differential equation and that$z(x)\coloneq\frac{1}{y(x)}$satisfies \begin{equation} \label{eq4} z'(x)-\frac{z(x)}{x}=-\frac{\log(x)}{x}\ . \end{equation} \item Find all the solutions to Equation \eqref{eq4} on$(0,+\infty)\$.
\end{itemize}
\end{ex}

\end{document} 