Tickets for a football game are 36 yuan per ticket. After the ticket price is reduced, the number of spectators increases by half, and the total income increases by 6 yuan. How much is the price of this ticket reduced?
一场足球赛的门票是36元一张，票价降低后观众人数比预计的增加一半，总收入比预计增加了6元．这张门票降价多少元．
<gadget id="calculator">36 + 6</gadget>
<output>42</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">42 / (3/2)</gadget>
<output>28</output>

<gadget id="calculator">36 - 28</gadget>
<output>8</output>

<result>8</result>