There are 26 willow trees in the school, 11 less pine trees than willow trees, and the number of poplar trees is equal to twice the total number of willow and pine trees. How many poplar trees are there in the school?
学校里有柳树26棵，松树比柳树少11棵，杨树的棵数等于柳树和松树总棵数的2倍，学校有杨树多少棵？
<gadget id="calculator">26 - 11</gadget>
<output>15</output>

<gadget id="calculator">15 + 26</gadget>
<output>41</output>

<gadget id="calculator">41 * 2</gadget>
<output>82</output>

<result>82</result>