3X Y=8 dan X+2Y=5 Di eliminasikan -

3x - y = 8  | x2 | 6x -2y = 16
x + 2y = 5 | x1 | x + 2y =  5 +
7x = 21
x = 21 : 7 = 3
x + 2y = 5
3 + 2y = 5
2y = 5 - 3
2y = 2
y = 1
Jadi, x = 3 dan y = 1

Source https://sebuahcatatan.live/as/catatanbrain/tugas/2130444