The store shipped 3 baskets of apples and 5 baskets of plums, weighing 210 kilograms in total, and each basket of plums weighed 30 kilograms. How many kilograms of apples are in each basket? (column equation solution)
商店运来3筐苹果和5筐李子，共重210千克，每筐李子重30千克，每筐苹果多少千克？(列方程解答)
<gadget id="calculator">30 * 5</gadget>
<output>150</output>

<gadget id="calculator">210 - 150</gadget>
<output>60</output>

<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<result>20</result>