Jawabanmu

2014-04-17T01:54:32+07:00
F(x) = -16
f(-16) = 5 - (-16)
f(-16) =21

bener tidalk caranya seperti ini ?
2014-04-17T02:43:15+07:00
Fog = f(g(x)) = 5 - ( x - 4) => 9 - x = -16 
x = 16 + 9 = 21