2x+5y=11 x-4y=-14 Metode gabugan

[tex]2x + 5y = 11 \\ x - 4y = - 14 \: (kali \: 2) = 2x - 8y = - 28 \\ 2x + 5y = 11 \\ 2x - 8y = - 28 \\ < - - - - - > - \\ 13y = 39 \\ y = \frac{39}{13} \\ y = 3.....(pers \: 1) \\ \\ 2x + 5y = 11 \\ 2x + 5(3) = 11 \\ 2x + 15 = 11 \\ 2x = 11 - 15 \\ 2x = - 4 \\ x = \frac{ - 4}{2} \\ x = - 2.....(pers \: 2)[/tex]
Semoga bermanfaat.....
-Prisco