Solve for A
A=n-\frac{1}{n}
n\neq 0
Solve for n
n=\frac{-\sqrt{A^{2}+4}+A}{2}
n=\frac{\sqrt{A^{2}+4}+A}{2}
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nA=n^{2}-1
The equation is in standard form.
\frac{nA}{n}=\frac{n^{2}-1}{n}
Divide both sides by n.
A=\frac{n^{2}-1}{n}
Dividing by n undoes the multiplication by n.
A=n-\frac{1}{n}
Divide n^{2}-1 by n.
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