Answer:
The number is 500
Explanation:
Let the number be x
The quotient of a number divided by five is written as

the number decreased by 400 is written as
x - 400
Equate the two expressions
We have

Multiply through by 5
That's
x = 5x - 2000
x - 5x = - 2000
- 4x = - 2000
Divide both sides by - 4
x = 500
Hope this helps you