Aunt Wang insisted on exercising every day this month, and she lost 2 kilograms to 50.3 kilograms. Do you know how much Aunt Wang weighed a month ago? (solution by equation)
王阿姨这个月每天坚持锻炼，体重减少2千克，变成50.3千克，你知道王阿姨一个月前多重吗？(用方程解)
<gadget id="calculator">50.3 + 2</gadget>
<output>52.3</output>

<result>52.3</result>