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Just confused on the 10n and 9n; n =

Just confused on the 10n and 9n; n =-example-1

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n=0.333...\ \ \ |\cdot10\\\\10n=3.333...\\\\10n-n=3.333...-0.333..\\\\9n=3\ \ \ |:9\\\\n=(3)/(9)\\\\n=(1)/(3)
User Larney
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