Two engineering teams excavate an 884m-long tunnel at the same time, each working from one end to the other. Team A excavates 12.6m per day, and team B excavates 13.4m per day. How many days will it take to get through the tunnel? (column equation solution)
两个工程队同时开凿一条884m长的隧道，各从一端相向施工，甲队每天开凿12.6m，乙队每天开凿13.4m．需要多少天打通隧道？(列方程解答)
<gadget id="calculator">12.6 + 13.4</gadget>
<output>26</output>

<gadget id="calculator">884 / 26</gadget>
<output>34</output>

<result>34</result>