Weare asked to solve for "l" in the expression:
p = 2 l + 2 w
first subtract the term "2 w" from both sides:
p - 2 w = 2 l
Now divide both terms by "2" in order to eliminate the factor 2 that accompanies the unknown "l":
(p - 2 w) / 2 = l
So : l = (p - 2 w)/2
we can also write it as:
l = p/2 - w
if we distribute the division by "2" among the two terms inside the parenthesis.
Please select the appropriate one from any list of options you may have been given.