Blue Book pg 738 #18 Math

<p>Problem #18 on pg 738 is not answered in the consolidated answers section of this forum. Could someone please help me with it?</p>

<p>I found it here... </p>

<p><a href="http://talk.collegeconfidential.com/showthread.php?t=141522%5B/url%5D"&gt;http://talk.collegeconfidential.com/showthread.php?t=141522&lt;/a&gt;&lt;/p>

<p>hope this helps</p>

<p>Yeah it does, thanks. I thought there might be an algebraic way to solve it but I guess you just have to go through step by step.</p>