Jawabanmu

2014-09-03T16:01:16+07:00
=3-9-17x+4x+35z+23y
=-6-13x+35z+23y
2014-09-03T16:04:51+07:00
(3-17x + 35z) + (4x+23y-9)
= 3-17x+35z+4x+23y-9
=3-9-17x+4x+23y+35z
= -6-13x+23y+35z