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Home Page 3Rs To algebra
Presentation by Howard C. McAllister. Copyright 1996
For a lesson plan using this example click here.

Problem: Determine the value of
y = a - b if a = 8 and b = 9.

Enter the response to the
request by the problem.

Enter the response to the
first request by the equation.

Enter the response to the
second request by the equation.

The result of substitution is

The result of doing
the arithmetic is

Just do
what the

equations

tell

you
to do.

Home Page 3Rs answer To algebra
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