Question 895312
P = 2L + 2W
L = x
W = x-3
Plug in the values into the equation
P = 2L + 2W
P = 2(x) +2(x-3)
Distribute
P = 2x + 2x - 6
Add
P = 4x - 6
.
You need to have at least one concrete value to solve further (P, L, or W)