A project originally planned for 8 people to work 6 hours a day can be completed in 10 days. Now, in order to speed up the progress of the project, 22 more people are added, and the working hours are increased by 2 hours a day. In this way, how many days can the project be completed in advance?
一项工程，原计划8个人，每天工作6小时，10天可以完成．现在为了加快工程进度，增加22人，每天工作时间增加2小时，这样，可以提前几天完成这项工程？
<gadget id="calculator">8 * 6 * 10</gadget>
<output>480</output>

<gadget id="calculator">8 + 22</gadget>
<output>30</output>

<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<gadget id="calculator">30 * 8</gadget>
<output>240</output>

<gadget id="calculator">480 / 240</gadget>
<output>2</output>

<gadget id="calculator">10 - 2</gadget>
<output>8</output>

<result>8</result>