Xiaohua has 43 colored pens, and Xiaohua has 35 colored pens. The number of colored pens given by Xiaohua to Xiaohua is equal to that of the two.
小华有彩笔43支，小花有有彩笔35支，小华给小花多少支后两人的支数相等．
<gadget id="calculator">43 + 35</gadget>
<output>78</output>

<gadget id="calculator">78 / 2</gadget>
<output>39</output>

<gadget id="calculator">43 - 39</gadget>
<output>4</output>

<result>4</result>