Respuestas

2012-03-08T00:32:25+01:00

1. -13 - 1/12x = 11/12x + 2
2. 7/2t + 12 = 6 + 5/2t

x/3 + 5/6= 8/18
6x/18 + 15/18 = 8/18
6x + 15 = 18
6x = 18 - 15
x =3/6
x = 1/2