After unfolding a square wire frame with a side length of 4 meters, fold it into a rectangular wire frame with a width of 3 meters. What is the long side of the rectangular wire frame?
把一个边长为4米的正方形铁丝框展开后，折成一个宽边为3米的长方形铁丝框，问长方形铁丝框的长边是多少？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<result>5</result>