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algebra

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Two sides of a triangle have equal length. The third side is seven inches shorter. How long are the three sides if the perimeter is 23 inches?

  • algebra -

    Let x equal the two sides of equal length.

    2x + (x - 7) = 23
    3x - 7 = 23
    3x = 30
    x = 10

  • algebra -

    mgf
    b

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