matematika sistem persamaan linear dua variabel tolong di isi please butuh baget

1. x-6y=13
5x-3y=38
{kalikan silang}
5x-30y=65
5x-3y=38
{kurang kan}
-27y=27
y=27:-27
y=-1

x-6y=13
x-6(-1)=13
x+6=13
x=13-6
x=7


jadi x=7, y=-1

bukti:
7-6(-1)=13
7+6=13