The equation to figure out a perimeter is P(perimeter) = 2w(width) + 2l(length).
Then you plug the numbers we know into the equation P = 2w + 2l.
l = w + 16
P = 96
96 = 2w + 2(w + 16)
Then you get rid of parentheses & you can get rid of these in two different ways.
1) Distributing the 2
96 = 2w + 2w + 32
Then simplifying to get the answer.
96 = 4w + 32
64 = 4w
16 = w
2) Dividing the 2 by both sides of the equation
48 = w + w + 16
Then simplify the expression to get the answer.
48 = 2w + 16
32 = 2w
16 = w
