The older brother has 14 pencils, and the younger brother has 20 pencils. After the younger brother gives the older brother a few pencils, the two will have the same number of pencils?
哥哥有14支铅笔，弟弟有20支铅笔，弟弟给哥哥几支后，两人的铅笔支数就同样多？
<gadget id="calculator">14 + 20</gadget>
<output>34</output>

<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">20 - 17</gadget>
<output>3</output>

<result>3</result>