A rope has been used up to 75 meters, and the rest is 26 meters less than the used one. How long was the rope?
一根绳子用去了75米，剩下的比用去的少26米，这根绳子原来有多长？
<gadget id="calculator">75 - 26</gadget>
<output>49</output>

<gadget id="calculator">49 + 75</gadget>
<output>124</output>

<result>124</result>