x = 2y-2 dan 5x - 5y + 1 = 0

x = 2y - 2

subtitusi ke pers :
5x - 5y + 1 = 0
5(2y - 2) - 5y + 1 = 0
10y - 10 - 5y + 1 = 0
5y - 9 = 0
5y = 9
y = 9/5

subtitusi ke pers
x = 2y - 2
x = 2(9/5) - 2
x = 18/5 - 2
x = 18/5 - 10/5
x = 8/5

hp = {8/5 , 9/5}