Respostas

2014-08-06T17:48:46-03:00
11x+7= -6
11x= -6-7
11x= -13
x= -13/11

Espero ter ajudado !
1 5 1
2014-08-06T17:50:03-03:00
11x+7= -6
11x= -6-7
11x= -13
x= -13/11

1 5 1