Respuesta :

Answer: 42

Step-by-step explanation:

Simply substitute 7 for x.

56 - 2(7)

56 - 14

42

Hope it helps <3

Answer:

f(7)=42

Step-by-step explanation:

f(x)=56-2x

Here put x=7

f(7)=56-2(7)

f(7)=56-14

f(7)=43

I hope this will help you :)