Question 845194
First let's state what the formula for the perimeter for a rectangle is. 

P = 2L + 2W.

From the problem, we know that the length is 3 more than the width. Because it says "3 more" that tells us to add three to the width which we still don't know and we'll call w.

Therefore, let w = width and l(length) = w+3.

The perimeter P = 26 ft. 

Now, we simply plug in the values into the formula and solve for w.

26 = 2(w+3) + 2w

Use Distributive property to simplify the expression for length

26 = 2w+6 + 2w.

Combine like terms

26 = 4w + 6.

Subtract each side by 6

20 = 4w

Divide each side by 4

5 = w. 

Therefore the width is 5 ft.