Jawabanmu

2014-09-08T21:27:35+07:00
(3-17x+35z)+(4x+23y-9)
=35z+23y-17x+4x+3-9
=35z+23y-13x-6
2014-09-08T21:28:25+07:00
(3-17x+35z) + (4x+3y-9)
= 3-17x+35z+4x+23y-9
= 3-9-17x+4x+35z+23y
= -6-13x+35z+23y
= -13x+23y+35z-6

semoga benar yaa jawabannya...