Jawabanmu

2014-06-06T20:14:50+07:00
F(g(x))=10x+7
f(5x+3)=10x+7
misal y= 5x+3
x=y-3/5
jadi
f(y)=10(y-3/5)+7
f(y)=2y-6+7
f(x)=2x+1