After a wire is divided into two parts according to the ratio of 3:2, the difference between the two parts is 3 meters, what is the original length of the wire?
把一根铁丝按3：2分成两段后，两段相差3米，这根铁丝原长多少米．
<gadget id="calculator">1 * 5</gadget>
<output>5</output>

<result>5</result>