There are 35 basketballs in the school. The number of volleyballs is twice that of basketballs. The number of footballs is 14 less than the total number of volleyballs and basketballs. How many footballs are there?
学校有35个篮球，排球的个数是篮球的2倍，足球比排球与篮球的总数少14个，足球有多少个？
<gadget id="calculator">35 * 2</gadget>
<output>70</output>

<gadget id="calculator">70 + 35</gadget>
<output>105</output>

<gadget id="calculator">105 - 14</gadget>
<output>91</output>

<result>91</result>