Solve for R
R=\frac{C}{2\pi }
Solve for C
C=2\pi R
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2\pi R=C
Swap sides so that all variable terms are on the left hand side.
\frac{2\pi R}{2\pi }=\frac{C}{2\pi }
Divide both sides by 2\pi .
R=\frac{C}{2\pi }
Dividing by 2\pi undoes the multiplication by 2\pi .
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