Question

dados f(x) = 3x+1 g(x)=x-3 determine :
fofoF(2)

Answer 1

$f(2)=3x+1 \\ 3.2 +1 \\ 6+1 \\ f=7 \\ \\ \\ g(2)=x-3 \\ 2-3 \\ g=-1$