Respostas

2014-08-25T11:15:36-03:00
X-3=6+4x
x-4x=6+3
-3x=9
-x= \frac{9}{3}
-x=3
x=3
1 5 1
2014-08-25T11:20:05-03:00
X - 3 = 6 + 4x
x - 4x = 6 + 3
- 3x = 9
- x = 9/3
- x = 3
x = - 3

Tenha bons estudos !
1 5 1