2x - 3y = 15 dan 2x - 5y = 13 metode substitusi

Mapel : Matematika
Kelas : VIII SMP
Bab : SPLDV

Pembahasan :
2x - 3y = 15
2x - 5y = 13
——————— (-)
2y = 2
y = 1

Substitusi...
2x - 3y = 15
2x - 3(1) = 15
2x = 15 + 3
2x = 18
x = 9

Hp : {9 , 1}