Respostas

2014-03-09T11:08:53-03:00
2x + 25 = 4x + x - 5
2x - 4x - x = -5 - 25
-3x = -30
x = -30 / -3
x = 10
2 5 2
2014-03-09T11:09:14-03:00
2x + 25 = 4x + x - 5
2x - 5x = -5 -25
- 3x = -30
x = -30 / -3
x = 10
1 5 1