SOLUTION: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 189 square feet and the dimensions of the pool are 6 feet by 14 feet, how wide is the walk

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Question 944146: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 189 square feet and the dimensions of the pool are 6 feet by 14 feet, how wide is the walk?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Done one much like this yesterday. You should look for that one.

Assign variables to everything. Solve for the unknown variable. Plug in the given values.

Here... a few of the given values are different but the concept and method are the same:
http://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.943701.html