Question

SPLDV metode eliminasi 2x+y=4 dan x-2y=2

Answer 1

Maaf kalo salah
eliminasi x, ketemu y=-5
eliminasi y, ketemu x = 2

Answer 2

2x + y = 4 |x1| (dikali 1)
x - 2y = 2 |x2| (dikali 2)

2x + y = 4
2x - 4y = 4
—————— -
5y = 0
y = 5

Kita pakai percobaan yg ke-2
2x - 4y = 4
2x - 4(5) = 4
2x - 20 = 4
2x = 4 + 20
2x = 24
x = 24/2
x = 12

Jadi, x= 12 y= 5

Kyanya si begitu caranya!