I need to know how to start this.(adsbygoogle = window.adsbygoogle || []).push({});

Basically, I'm trying to isolate x on one side, so that I can input f(x) and solve for x, instead of the other way around.

Image: http://img146.imageshack.us/img146/8869/tempng8.png [Broken]

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# Help with reversing a function

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