Tentukan hp dan persamaan 1.2x-y =6 Dan x+y=3 2.2x +2y=4 Dan x-y=2 Ini menggunakan metode eliminasi dan subtitusi tolong di jawab

1. 2x - y = 6
y = 2x - 6

x + y = 3
x + 2x - 6 = 3
3x = 3+6
3x = 9
x = 9/3
x = 3

2x - y = 6
2(3) - y = 6
6 -y = 6
y = 6 -6
y = 0

HP = {0,3}

2.
x-y = 2
x= 2+y

2x + 2y = 4
2(2+y) + 2y= 4
4 + 2y + 2y = 4
4y = 4-4
4y = 0
y = 0

x - y = 2
x - 0 = 2
x = 2 +0
x = 2

Hp = {2,0}