The per capita income in Baisha Township reached 5,250 yuan last year, exactly 14 times that before the reform and opening up. How much was the average income of people in Baisha Township before the reform and opening up? (List the equations containing the unknown x, and then answer)
白沙乡去年人平均收入达到5250元，正好是改革开放前的14倍．改革开放前白沙乡人平均收入只有多少元？(列出含有未知数x的等式，再解答)
<gadget id="calculator">5_250 / 14</gadget>
<output>375</output>

<result>375</result>