The length and width of a rectangle are both increased by 7cm, and the area of the new rectangle is 217cm2 larger than that of the original rectangle. Find the perimeter of the original rectangle?
一个长方形的长和宽都增加7cm，形成新长方形比原长方形的面积多217平方厘米，求原长方形的周长？
<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<result>48</result>