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      <text>8.1.1.4 Exercise: Cramer's rule for solving simultaneous equations</text>
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      <text><![CDATA[<p class="HELM_exercise">Exercise 1 (paper exercise)<br></p>
<p>Use Cramer’s rule to determine any and all solutions to the equations</p>
<p><span class="math display">\[\text{(a)}\ \ \ \ \begin{array}{rrrrr}2x-3y&amp;=&amp;6\\ 4x-6y&amp;=&amp;12\end{array}
\qquad\ \ \ \text{(b)}\ \ \begin{array}{rrrrr}2x-3y&amp;=&amp;6\\
4x-6y&amp;=&amp;10\end{array}\]</span></p>
<p><br></p>]]></text>
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