For a rectangle, if the width remains the same, the length decreases by 3 meters, and the area decreases by 24 square meters. If the length remains the same, but the width increases by 3 meters, and the area increases by 60 square meters, what is the original area of the rectangle?
一个长方形，如果宽不变，长减少3米，面积减少24平方米，如果，长不变，宽增加3米，面积增加60平方米，这个长方形原来的面积是多少？
<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<gadget id="calculator">8 * 20</gadget>
<output>160</output>

<result>160</result>