Zara has a rectangular garden. The length of her garden is 12 feet and the width is 7 feet. She extends the width
of her garden by w feet to create a larger garden with a total perimeter of 46, feet. Write an equation that can be
used to determine the amount of feet, w, by which Zara extends the width of her garden.
By how many feet does Zara extend the width of her garden? Show your work.