A piece of iron wire can just enclose a square with a side length of 7 decimeters. If this wire is used to enclose a rectangle with a width of 6 decimeters, what is the area of the rectangle?
一根铁丝正好能围成边长为7分米的正方形，如果用这根铁丝围宽6分米的长方形，长方形的面积有多大？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">7 * 2</gadget>
<output>14</output>

<gadget id="calculator">14 - 6</gadget>
<output>8</output>

<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<result>48</result>