Relax

Respuesta :

Answer:

f(x)=2

Step-by-step explanation:

-5(3)-3+20

-15-3+20

-18+20

2

f(3) = -5(3) - (3) +20

f(3) = - 15 - 3 + 20

f(3) = -18 + 20

f(3) = 2