Solve for l p=2(l+b)

$p = 2 (l + b)$

Rewrite the equation as $2 (l + b) = p$ .

$2 (l + b) = p$

Divide each term in $2 (l + b) = p$ by $2$ and simplify.

Divide each term in $2 (l + b) = p$ by $2$ .

$\frac{2 (l + b)}{2} = \frac{p}{2}$

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

$\frac{2 (l + b)}{2} = \frac{p}{2}$

Divide $l + b$ by $1$ .

$l + b = \frac{p}{2}$

Subtract $b$ from both sides of the equation.

$l = \frac{p}{2} - b$