Team A and Team B jointly build a 63.2-kilometer road. After the two teams work together for 7 days, the rest is completed by B at the original speed of 3.4 km per day. After another 5 days, how many kilometers does Team A build every day?
甲乙两队合修一条63.2千米的路，两队共同修7天后，剩下的由乙按原来每天3.4千米的速度完成，又修了5天，甲队每天修多少千米？
<gadget id="calculator">7 + 5</gadget>
<output>12</output>

<gadget id="calculator">3.4 * 12</gadget>
<output>40.8</output>

<gadget id="calculator">63.2 - 40.8</gadget>
<output>22.4</output>

<gadget id="calculator">22.4 / 7</gadget>
<output>3.2</output>

<result>3.2</result>