Mathematics, 26.06.2019 12:30 raynaesquivel

Write an expression to model the perimeter of the rectangle. length is x-9 and width is 3x-4. part b the perimeter of the rectangle is 138. what is x. plzz i will give you 100 points

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Write an expression to model the perimeter of the rectangle. length is x-9 and width is 3x-4. part b...