It is known that x/2=8, then 2x=how much.
已知x/2=8，那么2x=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">8 / (1/2)</gadget>
<output>16</output>

<gadget id="calculator">2 * 16</gadget>
<output>32</output>

<result>32</result>