Jawabanmu

2014-09-01T08:36:54+07:00
1. 4a - 12 + 5a + 10 = 4a + 5a + 10 - 12 = 9a - 2
2. 3p - 5a + 10
kalo 3p -5 ( -p+k )
kalo 3p - 5 ( -p +k)
2014-09-01T10:30:59+07:00