Solve for P
P=4\left(x+1\right)
Solve for x
x=\frac{P-4}{4}
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P=2\left(2x+2\right)
Combine x and x to get 2x.
P=4x+4
Use the distributive property to multiply 2 by 2x+2.
P=2\left(2x+2\right)
Combine x and x to get 2x.
P=4x+4
Use the distributive property to multiply 2 by 2x+2.
4x+4=P
Swap sides so that all variable terms are on the left hand side.
4x=P-4
Subtract 4 from both sides.
\frac{4x}{4}=\frac{P-4}{4}
Divide both sides by 4.
x=\frac{P-4}{4}
Dividing by 4 undoes the multiplication by 4.
x=\frac{P}{4}-1
Divide P-4 by 4.
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