A store sells 150 boxes of apples, which is 30 boxes more than (2/3) of pears. How many boxes of pears are sold? (column equation solution)
某商店卖出苹果150箱，比卖出的梨的(2/3)多30箱，卖出梨多少箱？(列方程解答)
<gadget id="calculator">150 - 30</gadget>
<output>120</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">120 / (2/3)</gadget>
<output>180</output>

<result>180</result>