Question 896044
I solved an example of this same form today.  Look for that one and you'll find the method used, and you can handle this one the same way.


... What I mean is that the same general problem but different example is here:
<a href="http://www.algebra.com/algebra/homework/expressions/expressions.faq.question.895844.html">A good friend of yours is planning to install a new concrete walkway around his backyard swimming pool. The pool measures 25 feet long by 15 feet wide, and the width of the walkway - http://www.algebra.com/algebra/homework/expressions/expressions.faq.question.895844.html</a>