For a barrel of oil, half of the oil eaten last week was 2 kg less. At this time, there was still 14 kg of oil in the barrel. How many kg of oil was there originally?
一桶油，上个星期吃掉油的一半少2千克，这时桶里还有油14千克，原来有油多少千克？
<gadget id="calculator">14 - 2</gadget>
<output>12</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<result>24</result>