There are two colored ribbons, one is 3 meters long and the other is 2 meters long. Cut off a section of the same length from them, the remaining length of the first one is twice the length of the second one. How many meters are cut from each of the two ribbons?
有两条彩带，一条长3米，另一条长2米．把它们剪去同样长的一段，第一条剩下的长度是第二条的2倍．两条彩带各剪去多少米．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">1 / 1</gadget>
<output>1</output>

<result>1</result>