Respostas

2014-02-13T21:15:02-02:00
Isolando x.
2x+3=0
2x=-3
x=3/2
1 5 1
2014-02-13T21:18:22-02:00
Y=-2x+3
y=-2x=-3   (-1)
y=2x=3
y=3
   2
y=1,5
1 5 1