Respostas

2014-08-19T14:54:05-03:00
2 * (7x + 2) + 12 * (x + 1) = 2
14x + 4 + 12x + 12 = 2
14x + 12x = 2 - 12 - 4
26x = -14
   x = -14/26 (Simplificando)
   x = -7/13
1 2 1