Lao Wang goes from home to the train station by car. If he travels 4 kilometers per hour, he will be late for 2 hours; if he travels 6 kilometers per hour, he will arrive 1 hour earlier. How many kilometers is the distance from Lao Wang's house to the train station?
老王从家去火车站乘车，若每小时行4千米，则要迟到2小时；若每小时行6千米，则可提前1小时到达．求老王家到火车站的距离是多少千米？
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">6 * 1</gadget>
<output>6</output>

<gadget id="calculator">8 + 6</gadget>
<output>14</output>

<gadget id="calculator">6 - 4</gadget>
<output>2</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">7 + 2</gadget>
<output>9</output>

<gadget id="calculator">4 * 9</gadget>
<output>36</output>

<result>36</result>