
PERSAMAAN LINEAR TIGA VARIABEL
Authored by Kaudel Sofyan
Mathematics
1st Grade
Used 10+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ika {(x,y,z)} memenuhi sistem persamaan
3x−2y−3z=5
x+y−2z=3
x−y+z=−4,
maka nilai z adalah...
-3
-2
-1
4
5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
persamaan linear tiga variabel yang tidak mempunyai penyelesaian (himpunan kosong) ditunjukkan oleh, kecuali
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui harga 4 kg salak, 1 kg jambu, dan 2 kg kelengkeng adalah Rp54.000,00. Harga 1 kg salak, 2 kg jambu, dan 2 kg kelengkeng adalah Rp43.000,00. Harga 3 kg salak, 1 kg jambu, dan 1 kg kelengkeng adalah Rp37.750,00. Harga 1 kg jambu adalah ⋯⋅
Rp6.500,00
Rp7.000,00
Rp8.500,00
Rp9.250,00
Rp9.750,00
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jumlah tiga bilangan adalah 75. Bilangan pertama lima lebihnya dari jumlah dua bilangan lain. Bilangan kedua sama dengan 14 dari jumlah dua bilangan lain. Bilangan pertamanya adalah ⋯⋅
15
20
30
35
40
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
x+5y+2z=−a−b−c (1) Jika nila x,y,z adalah -2,-3,4
3x−y+4z=5a+b (2)
2x+y+5z=6a+1 (3)
maka nilai 2a+b+3c adalah
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24
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