Solve for p
p=8
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\sqrt{2p}+9-9=13-9
Subtract 9 from both sides of the equation.
\sqrt{2p}=13-9
Subtracting 9 from itself leaves 0.
\sqrt{2p}=4
Subtract 9 from 13.
2p=16
Square both sides of the equation.
\frac{2p}{2}=\frac{16}{2}
Divide both sides by 2.
p=\frac{16}{2}
Dividing by 2 undoes the multiplication by 2.
p=8
Divide 16 by 2.
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