Xiao Ming participated in a mathematics competition. There were 20 questions in the test. He got 5 points for each correct question and deducted 3 points for every wrong question. Xiao Ming got a total of 76 points. How many questions did he get right?
小明参加一次数学竞赛，试题共20道，每做对1题得5分，错1题倒扣3分，小明共得了76分，他做对了多少道题．
<gadget id="calculator">5 * 20</gadget>
<output>100</output>

<gadget id="calculator">100 - 76</gadget>
<output>24</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">24 / 8</gadget>
<output>3</output>

<gadget id="calculator">20 - 3</gadget>
<output>17</output>

<result>17</result>