Pre-Algebra Examples

$P = 2 (L + W)$

Step 1

Rewrite the equation as $2 (L + W) = P$ .

$2 (L + W) = P$

Step 2

Divide each term in $2 (L + W) = P$ by $2$ and simplify.

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Step 2.1

Divide each term in $2 (L + W) = P$ by $2$ .

$\frac{2 (L + W)}{2} = \frac{P}{2}$

Step 2.2

Simplify the left side.

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Step 2.2.1

Cancel the common factor of $2$ .

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Step 2.2.1.1

Cancel the common factor.

$\frac{2 (L + W)}{2} = \frac{P}{2}$

Step 2.2.1.2

Divide $L + W$ by $1$ .

$L + W = \frac{P}{2}$

Step 3

Subtract $W$ from both sides of the equation.

$L = \frac{P}{2} - W$