How to modify the margin in a minipage environment

Well, I have a problem with my TeX code, I want to make a header with an image on each side, but I want these images to occupy the part of the margin, that is, to leave the margin smaller during this header, but I am not achieving. Here's the part of the code I want to edit the margin.

\begin{minipage}{1cm}
   \includegraphics[scale=0.08]{./imagens/Brasao_governo_MT.png}
\end{minipage}

\begin{minipage}{10cm}
   \centering
   {\ABNTEXchapterfont\normalsize\normalfont    \imprimirinstituicao}
\end{minipage}

\begin{minipage}{1cm}
   \includegraphics[scale=0.08]{./imagens/Brasao_Unemat.png}
\end{minipage}

If anyone can help me, I am very grateful.

OBS 1: I was able to make it work, but I had to do it with \hspace*{} if they know in some way more "beautiful" I thank you.