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= 3-17x+35z+4x+23y-9
= 3-9-17x+4x+35z+23y
= -6 -13x +35z+23y
itu dikelompokkan berdasarkan variabel.
semoga membantu.
= 3-17x+35z+4x+23y-9
= 3-9-17x+4x+35z+23y
= -6 -13x +35z+23y