Diketahui sistem persamaan linier dua variabel 2x – 5y = 9 dan x + 3y = -1 tentukan himpunan

Jawaban:

2x – 5y = 9 |×1

x + 3y = -1 |×2

2x – 5y = 9

2x + 6y = -2

__________ _

-11y = 11

y = -1

x + 3y = -1

x + 3(-1) = -1

x – 3 = -1

x = 2

Hp = (2 , -1)