There are two ropes of the same length. The first rope is cut off by 4 meters, and the second rope is cut off by 19 meters. The remaining length of the first rope is twice that of the second. How many meters are the two ropes in total?
有两根同样长的绳子，第一根绳子剪去4米，第二根绳子剪去19米，第一根绳子剩下的长度是第二根的2倍．原来两根绳子一共有多少米．
<gadget id="calculator">19 * 2</gadget>
<output>38</output>

<gadget id="calculator">38 - 4</gadget>
<output>34</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">34 / 1</gadget>
<output>34</output>

<gadget id="calculator">34 * 2</gadget>
<output>68</output>

<result>68</result>