x + 2y -z = 2 3x-3y+z =1 2y +y-4z = -1
Matematika
novita500
Pertanyaan
x + 2y -z = 2 3x-3y+z =1 2y +y-4z = -1
1 Jawaban
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1. Jawaban cantikasalsa1506
x+2y-z=2
3x-3y+z=1
eliminasi
4x-y=3
.
3x-3y+z=1
kali 4
12x-12y+4z=4
2x+y-4z=-1
eliminasi
14x-11y=3
.
4x-y=3
kali 11
44x-11y=33
14x-11y=3
eliminasi
30x=30
x=1
y=4x-3=1
z=1-3x+3y=1