Jawabanmu

2014-03-06T21:45:33+07:00
3/4 x n + 15 % = 1.275
0,75 x n + 0,15 = 1.275
0,75n = 1.275 - 0,15
0,75n = 1274,85
n = 1274,85 / 0,75
n = 1699,8
2014-03-06T21:53:45+07:00