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algebra

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The perimeter of a rectangle is 128m the length is 4m more than twice the width

  • algebra -

    L = 4 + 2 w so 2 w = (L-4)

    128 = 2 L + 2 w

    128 = 2 L + (L-4)

    128 = 3 L - 4
    proceed

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