<PRE><B>Question 208643</B>
Let length = 5x - 3

Let width = x

The perimeter is 18

Use the formula: P = 2L + 2W as step one.

Here is the set up:

18 = 2(5x - 3) + 2(x)

When you find x, this will be your width.  Then go back to 5x - 3, plug your value for x and simplify to find your length.

Can you finish now?</PRE>