The grain stored in Warehouse A is twice that of Warehouse B. If Warehouse A ships 750 tons and Warehouse B brings in 350 tons, the grains in the two warehouses are equal. How many tons of grain are stored in each of the two warehouses?
甲仓库存粮为乙仓库存粮的2倍，若甲仓运出750吨，乙仓运进350吨，则两仓粮食相等．两仓现在各存粮多少吨？
<gadget id="calculator">750 + 350</gadget>
<output>1_100</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">1_100 / 1</gadget>
<output>1_100</output>

<gadget id="calculator">1_100 * 2</gadget>
<output>2_200</output>

<gadget id="calculator">2_200 - 750</gadget>
<output>1_450</output>

<result>1_450</result>