The fruit store shipped 450 kilograms of apples, which was three times the amount of pears and 3 kilograms less. How many kilograms of pears did the fruit store bring in? (solution by equation)
水果店运进苹果450千克，是运进梨的3倍少3千克，水果店运进梨多少千克？(用方程解)
<gadget id="calculator">450 + 3</gadget>
<output>453</output>

<gadget id="calculator">453 / 3</gadget>
<output>151</output>

<result>151</result>