Answer:
f(3) = -1
Step-by-step explanation:
The given function is: f(x) - 7 = 4(x - 5)
[tex]$ \implies f(x) = 7 + 4x - 20 $[/tex]
[tex]$ \implies f(3) = 7 + 4(3) - 20 $[/tex]
[tex]$ \implies f(3) = 7 + 12 - 20 = 7 - 8 $[/tex] = -1.
Therefore, -1 is the answer.