The younger brother has 14 yuan and the older brother has 10 yuan. How much does the elder brother give the younger brother, and the younger brother has twice as much money as the elder brother.
弟弟有钱14元，哥哥有钱10元．哥哥要给弟弟多少元，弟弟的钱才比哥哥多2倍．
<gadget id="calculator">14 + 10</gadget>
<output>24</output>

<gadget id="calculator">2 + 1 + 1</gadget>
<output>4</output>

<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">10 - 6</gadget>
<output>4</output>

<result>4</result>