A barrel of oil weighs 12 kilograms. After half of the oil is poured out, the total weight of the barrels is 7 kilograms. If the price of oil per kilogram is 8.6 yuan, how much can this barrel of oil be sold for?
一桶油连桶重12千克，倒出一半油后，连桶共重7千克，如果每千克油售价8.6元，这桶油还能卖多少元．
<gadget id="calculator">12 - 7</gadget>
<output>5</output>

<gadget id="calculator">8.6 * 5</gadget>
<output>43</output>

<result>43</result>