TI-83 Programs

<p>Does anyone out there know a simple program that I can put into my TI-83 to somehow simplify an equation using multiple variables? For example, #7 on this page: <a href="http://www.sparknotes.com/testprep/books/sat2/math2c/chapter5section9.rhtml%5B/url%5D"&gt;http://www.sparknotes.com/testprep/books/sat2/math2c/chapter5section9.rhtml&lt;/a&gt;&lt;/p>

<p>Also, is there a program that can solve for X in any equation? </p>

<p>These are really two simple programs, I imagine, but I'm not sure if they exist--especially the first one.</p>

<p>Any help would be greatly appreciated.</p>

<p>TI-83 or TI-83+?</p>

<p>TI-83+</p>

<p>Basically I just want to know what the useful programs are for the Math IIC...</p>

<p>You can try SAT_OS => Includes system of equations solver and equation solver based upon one variable. </p>

<p>Download it here:
<a href="http://www.ticalc.org/archives/files/fileinfo/366/36668.html%5B/url%5D"&gt;http://www.ticalc.org/archives/files/fileinfo/366/36668.html&lt;/a&gt;&lt;/p>

<p>:D</p>

<p>I don't have the plug (or whatever it's called) to transfer programs from the computer to the calculator. I wanted to know of some programs I could manually enter. Something like the one at highersat.com.</p>

<p>I'm going to ask my math teachers if they have a port that I can borrow. If they don't have one, I'll ask one of my nerdy friends. If they don't have one then... <em>sigh</em></p>