tentukan nilai dari (fog) (x) f (x)=3x+1 g(x) =6-2x

f(x) = 3x  + 1
g(x)= 6 - 2x

f o g (x) = f { g(x) }
f o g (x) = f { 6 - 2x)
f 0 g (x) = 3(6 - 2x) + 1
f o g (x) = 18 - 6x + 1
f 0 g (x) = 19 - 6x