<PRE><B>Question 713798</B>
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The only way this works is if you left out some important words in the problem.  It should have read &quot;Melinda&#39;s father Lester is 3 times as old as Melinda. Seven years ago, he was 4 times as old as Melinda &lt;i&gt;&lt;b&gt;was seven years ago&lt;/b&gt;&lt;/i&gt;. How old is each now?


Then, presuming *[tex \LARGE L] represents Lester&#39;s age now and *[tex \LARGE m] represents Melinda&#39;s age now, you can say that Lester was *[tex \LARGE L\ -\ 7] seven years ago and Melinda was *[tex \LARGE m\ -\ 7] seven years ago.  Hence:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 3m\ =\ L]


and


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4(m\ -\ 7)\ =\ L\ -\ 7]


I&#39;m guessing that you can handle it from here.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
&lt;font face=&quot;Math1&quot; size=&quot;+2&quot;&gt;Egw to Beta kai to Sigma&lt;/font&gt;
My calculator said it, I believe it, that settles it
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