A peasant woman carries a basket of eggs to sell. She sells half of all the eggs for the first time, plus one; for the second time, she sells the remaining half for one; In the end, there are 2 eggs left in the peasant woman's basket. Question: How many eggs were there in the peasant woman's basket?
一个农妇提着一篮子鸡蛋去卖，第一次卖掉了全部鸡蛋的一半多1个；第二次又卖掉剩下的一半多1个；第三次还是卖掉剩下的一半多1个，最后农妇篮子里面还剩下2个鸡蛋．问：农妇篮子里原来有多少个鸡蛋．
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 / (1/2)</gadget>
<output>6</output>

<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<gadget id="calculator">7 / (1/2)</gadget>
<output>14</output>

<gadget id="calculator">14 + 1</gadget>
<output>15</output>

<gadget id="calculator">15 / (1/2)</gadget>
<output>30</output>

<result>30</result>