\"\"\"\"

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The expression is \"\" .

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Apply cross product:if\"\"then \"\".

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\"\"

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\"\"                              (Distributive property: \"\")

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

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\"\"

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\"\"                  (Subtract 9t from each side)

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\"\"                  (Commutative property: \"\") 

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\"\"                           (Additive inverse property: \"\")

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\"\"                              (Additive identity property: \"\")    

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\"\"                                     (Subtract: \"\")

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\"\"

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\"\"                     (Add 24 to each side) \ \

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\"\"                               (Additive inverse property: \"\")

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\"\"                                     (Additive identity property: \"\")    \ \

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\"\"                                                (Add: \"\")

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\"\"

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\"\"                                           (Divide each side by 15) \ \

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\"\"                                                  (Cancel common terms) \ \

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

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 The value of  expression is \"\".