Xiaohong's weight this year is 37kg, which is 4.5kg heavier than last year. How much was Xiaohong's weight last year? (column equation solution)
小红今年的体重为37千克，比去年重4.5千克，小红去年体重是多少千克？(列方程解答)
<gadget id="calculator">37 - 4.5</gadget>
<output>32.5</output>

<result>32.5</result>