Respostas

2014-07-22T14:01:10-03:00
f(x)=(1/3)x-1
f(x)=x/3-1

g(x)=x/3-1
1/2=x/3-1
1/2+1=x/3
1+2/2=x/3
3/2=x/3
x=3.(3/2)
x=9/2