Dik: 3x+4y=24 dan 2x+3y=17. berapa nilai 4x+2y=

6x + 8y = 48
6x + 9y = 51
Kurangkan
y = 3 --> 3x = 24 - 4y = 12 --> x = 4

4x + 2y = 20

Mapel : Matematika
Kelas : VIII SMP
Bab : SPLDV

Pembahasan :
3x + 4y = 24 —» 6x + 8y = 48
2x + 3y = 17 —» 6x + 9y = 51

Eliminasi...
6x + 9y = 81
6x + 8y = 48
——————— (-)
17y = 33
y = 33/17

Substitusi...
2x + 3y = 17
2x + 3(33/17) = 17
2x + 99/17 = 17
34x + 99 = 289
34x = 190
x = 190/34
x = 95/17

Hp : {95/17 , 33/17}