A pair of rackets is 36 yuan, and each ball is 2 yuan. Li Jun spends 50 yuan on a pair of rackets. How many balls can he buy with the remaining money?
球拍36元一副，球每个2元，李军用50元钱一副球拍，剩下的钱能买多少个球？
<gadget id="calculator">50 - 36</gadget>
<output>14</output>

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

<result>7</result>