bantu aq ngerjakan soal ini ya teman....aq kesulitan nih. sama cara&penjelesannya juga. trmksh :)

4x - 3y = -4 => dikali 3
12x - 9y = -12
10x + 9y = 1
----------------- +
22x = -11
x = -1/2

4x - 3y = -4
4(-1/2) - 3y = -4
-2 - 3y = -4
3y = 2
y = 2/3

JAWAB A

4x-3y=-4 =>(dikali 3)
10x+9y=1 =>(dikali 1)

12x-9y=-12
10x+9y=1
-----------------+
22x=-11
x=-11/22
x=-1/2

10*(-1/2)+9y=1
-5+9y=1
-5+5+9y=1+5
9y=6
y=6:3/9:3
y=2/3