<p>Somehow I must have saved a value of "y" so everytime I use the solver with a y in it, I get the wrong answer. How do I clear a saved value? Any help is much appreciated.</p>
<p>f6 i think. clear a-z</p>
<p>i think there's also another command called DelVar.
to use it, you would enter "DelVar y" or something like that</p>