Lan Lan's weight is 31.5 kg, and her mother's weight is 9.5 kg less than Lan Lan's three times, how much is her mother's weight?
兰兰的体重是31.5千克，妈妈的体重是蓝蓝的3倍少9.5千克，妈妈的体重是多少千克？
<gadget id="calculator">31.5 * 3</gadget>
<output>94.5</output>

<gadget id="calculator">94.5 - 9.5</gadget>
<output>85</output>

<result>85</result>