<PRE><B>Question 80315</B>
This solution was generated by the &quot;Step-by-Step Linear Equations, Matrices and Determinants&quot; solver which can be found &lt;a href=&quot;http://calc101.com/webMathematica/matrix-algebra.jsp&quot;&gt; here &lt;/a&gt;

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So the solution is

(-4,5,-2)

If you have any questions about any of these steps, just ask.</PRE>