Solve for p
p=\frac{2^{A}}{2}
Solve for A
A=\log_{2}\left(p\right)+1
p>0
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2p=2^{A}
Combine p and p to get 2p.
\frac{2p}{2}=\frac{2^{A}}{2}
Divide both sides by 2.
p=\frac{2^{A}}{2}
Dividing by 2 undoes the multiplication by 2.
p=2^{A-1}
Divide 2^{A} by 2.
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