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This solution illustrates the basic structure of problem solving.
The algebraic operations are done error free using
SureMath - the math software for 21st century problem solving.

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The starting equation RESPONDS directly to what is
ASKED FOR and REQUESTS additional information.

The next step RESPONDS to the request.

Supplying the RESPONSE to the requesting equation
produces a RESULT.

The REQUEST-RESPONSE-RESULT structure will solve any problem.

In order to solve complex problems reliably, the basic REQUEST-RESPONSE-RESULT structure must be used routinely. Practice on problems like this one is necessary. The best problems to practice on are ones that you can do "in your head". Converting to an orderly concept-based solution develops the skills needed for solving more involved problems reliably.

LEARN THAT----Equations Talk!

This problem solution was developed using SureMath,
the problem solving software for the 21st century.

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Copyright 1995. Howard C. McAllister