persamaan garis yang melalui

5x - 2y = 8
- 2y = - 5x + 8
m = -5/-2
m = 5/2

sejajar m1 = m2 = 5/2

pers garis
y - y1 = m ( x - x1)
y + 5 = 5/2 ( x - 3)
y = 5/2 x - 15/2 - 5 (dikali 2)
2y = 5x - 15 - 10
2y - 5x = - 25
- 5x + 2y + 25 = 0
5x - 2y - 25 = 0