Respuesta :

AanviSawhney

Answer:

-2

Step-by-step explanation:

f(x)=-3x+3

substitute value of f(x) with 9.

9=-3x+3

9-3=-3x

6/-3=x

-2=x

BrainlyHero

Given:

f(x)=-3x+3

When,

  • f(x)=9

★Substituting the values in the above equation

f ( 9 ) = - 3 × 9 + 3

= -18 + 3

= -15