Jawapan

2016-03-12T18:56:03+08:00
5(2-y)+y=-6 10-5y+y+6=0 10-4y+6=0 (5x3) (2x2) =15. =4
1 4 1
2016-03-12T19:29:59+08:00
5(2-y)+y = -6
10-5y + y =-6
-4y = -16
y=4