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March 25, 2017

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Two sides of a triangle are x + 2cm and 2x-3cm. If the perimeter is 5x + 7cm, what is the third side?

  • Math - ,

    5x + 7 -(x+2) - (2x-3) = 5x + 7 - x - 2 -2x +3 =
    2x + 8

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