(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

This is not homework; I'm working on a problem of my own...

I can't seem to remember how to solve equations like this (I'm trying to solve for R):

[tex]R - \sqrt{R^2 - X^2} \le B - \sqrt{B^2 - \left( \frac{BX}{A} \right) ^2}[/tex]

2. Relevant equations

My initial thought was to square both sides, but I don't see how that would help.

3. The attempt at a solution

I don't really know where to start.

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# Trying to solve for R

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