The area of a rectangle is 44ft (squared) and the length of the rectangle is 3ft less than double the width. find the dimension of the rectangle

Look at factors of 44 ...

1 and 44

2 and 22

4 and 11

Using those, we can see that 4 by 11 works, because 4x2 equals 8, which is 3 less than eleven. Stick to the basics, they are your best weapons.