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

Was just wondering how this equation:

[tex](k*16*10^(-6))/d^2=(k*16e-6)/(30-d)^2[/tex]

gets manipulated to produce this result

[tex]20(3-d)^2=d^2 [/tex]

[tex]d=2[/tex]

2. Relevant equations

3. The attempt at a solution

I've tried manipulating it myself but it ends up with me spiraling off into pages of crap that is obviously wrong.

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# Homework Help: Algebraic manipulation

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