A wire uses up half of it first, and then uses up 5 meters less than the remaining half. At this time, there are 11 meters left. How long is the wire?
一根铁丝先用去它的一半，再用去比剩下的一半还少5米，此时剩下11米，这根铁丝原来有多长？
<gadget id="calculator">11 - 5</gadget>
<output>6</output>

<gadget id="calculator">6 * 2 * 2</gadget>
<output>24</output>

<result>24</result>