Question

Given the equation P = 2w + 2l solve for w.

Answer 1

This equation cannot be solved to get a single number. Instead just use normal algebra skills to get the w by itself by subtracting 2l from both sides and then dividing by 2.

Answer 2

Answer:

The equation for w is :

$w=\frac{P}{2}-I$

Step-by-step explanation:

P = 2w + 2l

Step 1 : Taking 2 common:

$P=2(w+I)$

Step 2 : Dividing 2 on both sides:

$\frac{P}{2}=\frac{2(w+I)}{2}$

$\frac{P}{2}=w+I$

Step 3 : Subtracting I on both sides:

$\frac{P}{2}-I=w+I-I$

$w=\frac{P}{2}-I$

The equation for w is ;

$w=\frac{P}{2}-I$