A piece of rope, 0.54 meters was used, and the remaining 0.46 meters was 10 times more than what was used. How long was the rope originally?
一根绳子，用去0.54米，剩下的比用去的10倍还多0.46米，这根绳子原来长多少米？
<gadget id="calculator">0.54 * 10</gadget>
<output>5.4</output>

<gadget id="calculator">5.4 + 0.46</gadget>
<output>5.86</output>

<gadget id="calculator">5.86 + 0.54</gadget>
<output>6.4</output>

<result>6.4</result>