\"\"

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The direct variation formula is  \"\".

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\"\"              (Substitute \"\")

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\"\"                  (Multiply:  \"\")

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\"\"             (Divide each side by 0.5)

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\"\"                      (Cancel common terms) 

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\"\"                             (Divide:   \"\")

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\"\"

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The direct variation equation is  \"\".\"\"

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\"\"                     (Substitute \"\")

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\"\"                         (Multiply:  \"\")

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 \"\"

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 The value of    \"\".