Answer:
The answer to your question is   166 = 2l + 2w   and   l = 4w + 3
Step-by-step explanation:
Data
Perimeter = 166 ft
length of the garden = 4 times the width + 3 feet
Process
1.- Write an equation to find length and width using the perimeter
Perimeter of a rectangle = 2l + 2w
-Substitution
                 166 = 2l + 2w     Equation l
2.- Write an equation comparing the two sides of the rectangle
                   l = 4w + 3       Equation ll