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March 26, 2017

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Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a-1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.

  • algebra - ,

    3a+a+2+2a-1+3a+6;9a+7.

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