The English competition stipulates 10 questions, 7 points for one correct answer, 4 points deducted for one wrong answer, Xiaoyu scored 48 points, how many questions did he answer correctly?
英语竞赛规定10道题，做对一题得7分，做错一道倒扣4分，小宇得了48分，他答对了几道题？
<gadget id="calculator">10 * 7</gadget>
<output>70</output>

<gadget id="calculator">70 - 48</gadget>
<output>22</output>

<gadget id="calculator">4 + 7</gadget>
<output>11</output>

<gadget id="calculator">22 / 11</gadget>
<output>2</output>

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

<result>8</result>