2x + 3y = 5 dan 4x - y = 3 metode substitusi

susb pers.1
2x+3y=5
2x+3y-3y=5-3y
2x=5-3y
x=5-3y per 2

susb x = 5-3y per 2 ke pers 2
4x-y=3
4(5-3y / 2) -y =3
20-12y / 2 - y = 2
10-6y-y=2
10-7y=2
-7y=2-10
-7y=-8
y=-8/-7

x=5-3y / 2
=5-3(-8/-7) / 2
=5(-24/7)/2