The speed of the maglev train can reach 550 kilometers per hour, which is 60 kilometers more than 7 times that of ordinary trains. How many kilometers per hour does an ordinary train travel? (solution with equation)
磁悬浮列车的时速可达每小时550千米，比普通列车的7倍还多60千米．普通列车每小时行多少千米？(用方程解答)
<gadget id="calculator">550 - 60</gadget>
<output>490</output>

<gadget id="calculator">490 / 7</gadget>
<output>70</output>

<result>70</result>