Respuestas

2014-01-30T03:38:05+01:00
2014-01-30T03:39:59+01:00
6y-5(1+2y)=3+2(1-y)
6y - 5 - 10y = 3 + 2 - 2y
-4y - 5 = 5 - 2y
-2y = 10
y = -5 ,
Sl2