If A*B=(A*5-2)/B is stipulated, what is the result of 4*3
如果规定A※B=(A*5-2)/B，那么4※3结果是多少
<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<gadget id="calculator">20 - 2</gadget>
<output>18</output>

<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<result>6</result>