Selesaikan persamaan berikut.2x+4y=18 jika Y=X-3.

y = x - 3 substu tusi ke 2x + 4y = 18
2x + 4y = 18
2x + 4(x - 3) = 18
2x + 4x - 12 = 18
6x = 18 + 12
6x = 30
x = 30/6
x = 5

x = 5 substitusi ke y = x - 3
y = x - 3
y = 5 - 3
y = 2

Hp = {5, 2} ✔

2x + 4y = 18
y = x-3

2x + 4y = 18
2x + 4(x-3) = 18
2x + 4x -12 = 18
6x = 18 + 12
6x = 30
x = 30:6
x = 5

y = x-3
y = 5-3
y = 2