Answer:
Step-by-step explanation:
8x+47=8(x+5)
8x+47=8x+40
47=40
which is impossible so it has no solution.
Answer:

Step-by-step explanation:

Answer:
i think its b
Step-by-step explanation:
im so sorry if im wrong
It would be B. -6.
f(x) = 3x-12
f(2) = 3(2)-12
f(2) = 6-12
f(2) = -6