Perimeter of a Rectangle

Question

p= 2l+2w for l

l=

solve for specified variable

Answer 1

p=2w +2L

p/2 = w +L

L = p/2 -w

Length = half the perimeter then subtract width

Answer 2

p= 2l+2w

Subtract 2w from both sides:

p - 2w = 2l

Divide both sides by 2:

(p-2w)/2 = l