Respostas

2013-12-03T01:14:46-02:00
Faz assim :
6x + 6(x - 2) = 0
6x + 6x -12 = 0
12x - 12 = 0
12x = 12
x = 1
Até mais !
2013-12-03T01:31:36-02:00
6x + 6 (x - 2) = 0
6x + 6x - 12 = 0
12x - 12 = 0
12x = 0 + 12
12x = 12
x = 12 
÷ 12
x = 1