The area of a rectangle with a length of 12 cm is 36 cm2 less than the area of a square with a side length of 12 cm. What is the width of this rectangle in centimeters?
一个长为12厘米的长方形的面积比边长是12厘米的正方形面积少36平方厘米．这个长方形的宽是多少厘米？
<gadget id="calculator">12 * 12</gadget>
<output>144</output>

<gadget id="calculator">144 - 36</gadget>
<output>108</output>

<gadget id="calculator">108 / 12</gadget>
<output>9</output>

<result>9</result>