The school bought 18 basketballs and 3 footballs for a total of 1008 yuan. It is known that each football is 36 yuan, how much is each basketball?
学校买来18个篮球和3个足球，一共花去1008元．已知每个足球36元，每个篮球多少元？
<gadget id="calculator">36 * 3</gadget>
<output>108</output>

<gadget id="calculator">1_008 - 108</gadget>
<output>900</output>

<gadget id="calculator">900 / 18</gadget>
<output>50</output>

<result>50</result>