Selesaikan soal berikut dgn metode substitusi : x - y = 6 2x + 3y = 7 Fast respon please...

x-y=6 --->y=x-6
y=(x-6) substitusi ke persamaan 2x+3y=7
maka, 2x+3(x-6)=7
           2x+3x-18=7
           5x=7+18
           5x=25
             x=5

x-y = 6 => x = 6 + y

2x + 3y = 7
2(6+y) + 3y = 7
12 + 2y + 3y = 7
5y = -5
y = -1

x= 6 + y = 6 - 1 = 5