Answer:
-6
Step-by-step explanation:
for f(x), x=3, which is greater than 2, choose the second function.
so, f(3)=| 3-4 | = | -1 | = 1
for g(x), x=2, which is greater than 1, choose the second function.
so, g(2)= 3*2+1 = 7
f(3)-g(2)= 1-7=-6
