Jawabanmu

2014-08-26T16:20:15+07:00
(7p+14)-(9p+12)
=7p-9p+14-12
=-2p+2
=2-2p
=2(1-p)
4 4 4
2014-08-26T16:21:35+07:00
7p + 14 - 9p + 12
7p - 9p + 14 + 12
= -2p + 26
1 1 1