Respostas

2014-06-05T19:46:06-03:00
3x= y+3-2
3x= y+1
x= y+1/3

3y+1/3=y+3-2
2y=3-2-1.3
y=-2/2
y=-1

3x=-1+3-2
x=0/3
x=0

Então   y=-1 e x=0