tentukan himupunan penyelesaian SPLDV berikut {2x + y =5 x - 3y =13

2x + y = 5
x - 3y = 13 |×2
maka
2x + y = 5
2x - 6y = 26
------------------(-)
- 7y = - 21
y = 3
disubtitusi ke pers :
2x + y = 5
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 1

hp = { 1 , 3 }