Respostas

2013-09-26T22:43:46-03:00
f(g(x))=3x -7 e f(x)=x/3 -2
f(g(x)) = g(x)/3 -2
3x - 7 = g(x)/3 -2
3x - 7 +2 = g(x)/3
3x -5 = g(x)/3
3(3x -5) = g(x)
9x -15 = g(x)
10 4 10