An iron pipe is cut off 2 meters for the first time, and the remaining half is cut off for the second time, leaving 5 meters. How many meters is the iron pipe originally?
一根铁管，第一次截去2米，第二次截去剩下的一半，还剩5米，这根铁管原来有多少米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">5 / (1/2)</gadget>
<output>10</output>

<gadget id="calculator">2 + 10</gadget>
<output>12</output>

<result>12</result>