Respostas

2014-03-23T21:09:42-03:00
2x=8x+4+2x+1
8x=-5 
x=-5/8
2 3 2
2014-03-23T21:23:23-03:00
X/5=2x+1/2

2x=10x+5

-8x=5

x=-5/8