Warehouse A has a certain amount of grain. After 3.5 tons are shipped out, the rest is 2.7 tons more than what was transported away. How many tons of grain did warehouse A originally store?
甲仓有粮食若干，运出3.5吨后，剩下的比运走的多2.7吨，甲仓原来存有粮食多少吨？
<gadget id="calculator">3.5 + 2.7</gadget>
<output>6.2</output>

<gadget id="calculator">6.2 + 3.5</gadget>
<output>9.7</output>

<result>9.7</result>