Given that R= 4x + 4y Find x when y = 9 and R = 6 Give your answer as an improper fraction in its simplest form.

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1. you first substitute your given digits into the equation then you collect like terms and you get your answer

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2. x = -15/2

   6 = 4x + 4(9)

   4x = -30

   x = -30/4 = -15/2

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