= 100,000 CD's, from your definition

Multiply both sides by 4 (you can do this because you are doing the same thing to and equation)

4 x = 4 x 100,000 CD's

4 x = 400,000 CD's

4 's equals 400,000 CD's

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- November 13th 2009, 12:01 PM #1

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- November 13th 2009, 06:51 PM #2

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