There is a batch of goods in the warehouse, and 50 tons are shipped away, which is 15.5 tons more than the rest. How many tons are there in this batch of goods?
仓库存有一批货物，运走了50吨，比剩下的多15.5吨，这批货物共有多少吨？
<gadget id="calculator">50 - 15.5</gadget>
<output>34.5</output>

<gadget id="calculator">34.5 + 50</gadget>
<output>84.5</output>

<result>84.5</result>