A wire, cut 28.6 meters, 12.9 meters more than the rest. How many meters is this wire originally?
一根电线，剪下了28.6米，比剩下的多12.9米．这根电线原来有多少米？
<gadget id="calculator">28.6 - 12.9</gadget>
<output>15.7</output>

<gadget id="calculator">15.7 + 28.6</gadget>
<output>44.3</output>

<result>44.3</result>