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Verified answer
Diketahui :- 3x - 2y = 3
- 6x - 2y = 8
Ditanya : Nilai x dan y = .....?
Penyelesaian :
- Nilai x :
3x - 2y = 3
6x - 2y = 8
________ —
- 3x = - 5
x = - 5/- 3
x = 5/3
- Nilai y :
(3x - 2y = 3) × 2
(6x - 2y = 8) × 1
6x - 4y = 6
6x - 2y = 8
________ —
- 2y = - 2
y = - 2/- 2
y = 1
Maaf Kalau Salah
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Pelajaran :MatematikaKelas :8
Bab :4
Nama Bab :Sistem Persamaan Linier Dua Variabel
Kode mapel:2
Kode :8.2.4
Jawab:
//mengeliminasi x//
3x-2y=3║2║6x-4y=6
6x-2y=8║1║6x-2y=8
________ -
-4y-(-2y)=6-8
-4y+2y=-2
-2y=-2
y=-2/-2
y=1
//mengeliminasi y//
3x-2y=3
6x-2y=8
_______-
3x-6x-2y-(-2y)=3-8
-3x-2y+2y=-5
-3x=-5
x=-5/-3
x=5/3