\"\"

\

The direct variation formula is  \"\".

\

\"\"             (Substitute \"\")

\

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

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\"\"            (Divide each side by 4)

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\"\"                  (Cancel common terms) 

\

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

\

\"\"

\

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

\

\"\"                  (Substitute \"\")

\

\"\"             (Divide each side by negative 4)

\

\"\"                    (Cancel common terms)

\

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

\

\"\"

\

 \"\"

\

The value of  \"\".