A pile of coal is transported all (1/4) less 2 tons for the first time, and the remaining (1/5) is more than 2 tons for the second time. At this time, there are still 14 tons left undelivered. How many tons is this pile of coal?
一堆煤第一次运走全部的(1/4)少2吨，第二次运走剩下的(1/5)多2吨，这时还剩14吨没运．这堆煤共多少吨？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2 * (1/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">14 - 2</gadget>
<output>12</output>

<gadget id="calculator">(2/5) + 2 + 12</gadget>
<output>72/5 = around 14.4</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * (1/5)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) - (1/4) - (1/5)</gadget>
<output>-2/5 = around -0.4</output>

<gadget id="calculator">1 + (-2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(72/5) / (3/5)</gadget>
<output>24</output>

<result>24</result>