100 points, please answer honestly.

An architect is designing a rectangular greenhouse. Along one wall is a 7-ft storage area and 5 sections for different kinds of plants. On the opposite wall is a 4-ft storage area and 6 sections for plants. All of the sections for plants are of equal length. What is the length of each wall?

a. Write a let-statement defining your variable.

b. Write an equation in one variable to help you find the length of each wall.

c. Show work to solve the equation.

d. Write a sentence for your final answer.​