Question

if the formula for the perimeter of a rectangle is p=2l+2w, what is the formula for w in terms of p and l

Answer 1

(p-2l)/2 = w

Explanation:

p=2l+2w

We want to solve for w.

The first step is to subtract 2l from each side

p-2l=2l-2l+2w

p-2l=2w

Then we will divide each side by 2 to isolate w

(p-2l)/2 = 2w/2

(p-2l)/2 = w