Takamori37
Harap beritahu jika terjadi kesalahan pada penulisan soal. x + 2 = -8 x = -8 - 2 x = -10 Sehingga, 2x - y = -1 2(-10) - y = -1 -20 - y = -1 y = -20 + 1 y = -19
Jika yang dimaksud adalah: x + 2y = -8 (x2) 2x - y = -1 (x1) Eliminasikan, 2x + 4y = -16 2x - y = -1 - - Kurangi - - 5y = -15 y = -3 Lalu, x + 2y = -8 x + 2(-3) = -8 x - 6 = -8 x = -8 + 6 x = -2 Maka, x = -2 dan y = -3
x + 2 = -8
x = -8 - 2
x = -10
Sehingga,
2x - y = -1
2(-10) - y = -1
-20 - y = -1
y = -20 + 1
y = -19
Jika yang dimaksud adalah:
x + 2y = -8 (x2)
2x - y = -1 (x1)
Eliminasikan,
2x + 4y = -16
2x - y = -1
- - Kurangi - -
5y = -15
y = -3
Lalu,
x + 2y = -8
x + 2(-3) = -8
x - 6 = -8
x = -8 + 6
x = -2
Maka, x = -2 dan y = -3