Respuesta :

-8 / (n+3)

Don't need 20 characters
We are going to write the expression step by step.
 We have:
 the quotient:
 () / ()
 negative eight:
 (-8) / ()
 The sum of a number and three:
 Let:
 x: the number
 (-8) / (x + 3)
 Answer:
 An algebraic expression that represents the phrase is
 (-8) / (x + 3)
 "The quotient of negative eight and the sum of a number and three"