bantu saya :v help me

jawab
x+ 2y = 11 ....kali 3
3x - y = 5 .

3x + 6y = 33
3x - y = 5........kurangkan
7y = 28
y = 4

3x - y = 5
3x - 4 = 5
3x= 9
x = 3

HP (x,y) =(3, 4)

•Metode Substitusi
x+2y=11
x=-2y+11

3x-y=5
3(-2y+11)-y=5
-6y+33-y=5
-7y=5-33
-7y=-28
y=4

•Metode Eliminasi
x+2y=11|×3|3x+6y=33
3x-y=5 |×1 |3x - y =5
. ________-
. 7y=28
. y=4

Jadi, nilai y=4

Semoga bisa membantu...