Answer:
1
Step-by-step explanation:
(f-g)(x) = f(x) - g(x)
or we can also do
(f-g)(x) = 5x - |x + 7|
f(2) = 5*2 = 10
g(2) = |2 + 7| = |9| = 9
(f-g)(2) = f(2) - g(2) = 1
