Jawabanmu

2014-09-10T14:24:19+07:00
-13x +23y +35z -6.
itu jawabannya, maaf kalo salah.
2014-09-10T14:35:55+07:00
(3-17x+35z) + (4x+23y-9)
=3-17x+35z+4x+23y-9
= (-6-13x+35z+23y)