Jawabanmu

2014-03-13T11:02:59+07:00
2y - 7/2 = 3
2y = 3 + 7/2
2y = 6/2 + 7/2
2y = 13/2
y = 13/2 . 2
y =13
2014-03-13T11:06:25+07:00
2y-3,5=3
2y = 3+3,5
2y = 6,5
y =6,5/2
y = 3,25 (3 25/100=3 1/4)