Jawabanmu

2014-08-13T09:44:16+07:00
2014-08-13T09:44:29+07:00
(3-17x +35z)+(4x+23y-9)
3-17x +35z + 4x +23y -9
3-9 -17x+4x+23y+35z
-6 - 13x + 23y + 35z



2 4 2