A certain district held a mathematics competition. There were 10 questions in the test. 8 points were awarded for each correct question, and 5 points were deducted for each wrong question. Li Qiang finally got 41 points. How many questions did he get right? (solution by equation)
某区举行数学竞赛，试题共有10道，每做对一题得8分，每做错一题倒扣5分，李强最终得41分，他做对了多少道题？(用方程解)
<gadget id="calculator">50 + 41</gadget>
<output>91</output>

<gadget id="calculator">8 + 5</gadget>
<output>13</output>

<gadget id="calculator">91 / 13</gadget>
<output>7</output>

<result>7</result>