Question

Hp dari 2x +2y = 4 dan 3x+y =6

Answer 1

X + y = 2
3x + y = 6
_________ _
- 2x = - 4
   x = 2
   y = 0

Answer 2

Metode substitusi
2x + 2y = 4 dan 3x + y = 6
y = 6 - 3x → 2x + 2y = 4
2x + 2y = 4
2x + 2(6 - 3x) = 4
2x + 12 - 6x = 4
2x - 6x = 4 - 12
-4x = -8
x = -8/-4
x = 2

x = 2 → 3x + y = 6
3x + y = 6
3.2 + y = 6
6 + y = 6
y = 6 - 6
y = 0

HP = {2, 0}