E3.xml

<?xml version='1.0' encoding='UTF-8'?>
<exercise xmlns="https://spatext.clontz.org" version="0.0">
  <statement>
    <p>Show how to find the solution set for the following 
        {{#prompt_system}}
            system of linear equations.
        <me>{{system}}</me>
        {{/prompt_system}}
        {{#prompt_vectoreq}}
        vector equation <me>{{vectoreq}}</me>
        {{/prompt_vectoreq}}
     </p>
  </statement>

  <answer>
      <me>\mathrm{RREF}{{matrix}}={{rref}}</me>
      <p>The solution set is <m>{{solution}}</m>.</p>
  </answer>
</exercise>