<PRE><B>Question 990674</B>
.
Hello,


1. &amp;nbsp;Your conclusion that &amp;nbsp;y=0&amp;nbsp; is correct.


2. &amp;nbsp;For &amp;nbsp;x&amp;nbsp; and &amp;nbsp;z&amp;nbsp; we have only one equation &amp;nbsp;(one constrain) &amp;nbsp;5x + z = 0.


It means that &amp;nbsp;&lt;B&gt;z&lt;/B&gt;&amp;nbsp; can be anything, &amp;nbsp;but &amp;nbsp;&lt;B&gt;x&lt;/B&gt;&amp;nbsp; must be &amp;nbsp;{{{-z/5}}}.


Or, &amp;nbsp;in other words, &amp;nbsp;&lt;B&gt;x&lt;/B&gt;&amp;nbsp; can be anything, &amp;nbsp;but &amp;nbsp;&lt;B&gt;z&lt;/B&gt;&amp;nbsp; must be &amp;nbsp;{{{-5x}}}.


Thank you for asking.


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