Five Star Copier Factory produced 2120 copiers this year, 20 more than last year's 1.5 times. How many copiers were produced last year?
五星复印机厂今年生产复印机2120台，比去年的1.5倍还多20台，去年生产复印机多少台？
<gadget id="calculator">2_120 - 20</gadget>
<output>2_100</output>

<gadget id="calculator">2_100 / 1.5</gadget>
<output>1_400</output>

<result>1_400</result>