Jawabanmu

2014-03-05T21:27:22+07:00
1. 6y - 5/2= 7y- 5/6
       -10/6=y
2.  (2y- 1/4)= 5y+5/2
     -11/4= 3y
       y= -11/12

cmiww
2014-03-05T21:59:17+07:00
6y-2 1/2 = 7y - 5/6
6y-7y = -5/6 + 2 1/2
-y = 10/6