2x+y+z=-9 3y-2z=-4 8z=-8
Matematika
daraaulia54
Pertanyaan
2x+y+z=-9
3y-2z=-4
8z=-8
3y-2z=-4
8z=-8
1 Jawaban
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1. Jawaban cuttditha
8z=-8
z = -8/8
z = -1
3y-2z = -4
3y-2(-1)=-4
3y-(-2)=-4
3y+2=-4
3y=-4-2
3y=-6
y=-6/3
y= -2
2x+y+z=-9
2x+(-2)+(-1)=-9
2x-2-1=-9
2x-3=-9
2x=-9+3=-6
x=-6/2=-3