subtitusikan 3x+2y= -2 dan 2x-y=-6

2x-y=-6
Y = 2x+6
3x+2y=-2
3x + 2(2x+6)=-2
3x+4x+12=-2
7x=-14
X=-2
Y=2x+6
Y=2.-2+6
Y=-4+6
Y=2

3x+2y= -2 ---(1)
2x-y=-6 ---(2)
[Jawab]
(2) × 2 = 4x -2y = - 12 ---(2)'
(2)' + (1) = 7x = - 14
= x = - 2
Masukan ke (2)
- 4 - y = - 6
- y = - 6 + 4
- y = - 2
y = 2

Jadi,(x,y) = (-2,2)
MAAF KALO SALAH