There are 2,000 students in the first, second and third schools in a certain city. If the number of students in the first school is doubled, the number of students in the second school is reduced by 4, and the number of students in the third school is increased by 4, so the number of students in the three schools is the same. How many students are there in the first school? people?
某市一小，二小和三小共有2000名学生，如果一小人数扩大2倍，二小人数减少4人，三小人数增加4人，这样三校人数就一样多，问一小有多少人？
<gadget id="calculator">2_000 - 4</gadget>
<output>1_996</output>

<gadget id="calculator">4 + 1_996</gadget>
<output>2_000</output>

<gadget id="calculator">1 + 2 + 2</gadget>
<output>5</output>

<gadget id="calculator">2_000 / 5</gadget>
<output>400</output>

<result>400</result>