[tex]4x + 3y = - 5 \\ - x + 3y = - 10[/tex] selesaikan dalam metode eliminasi

Kelas 8 Matematika
Bab SPLDV

4x + 3y = -5
-x + 3y = -10
------------------ -
5x = 5
x = 5/5
x = 1

-x + 3y = -5 → dikali 4 → -4x + 12y = -20

4x + 3y = -5
-4x + 12y = -20
---------------------- +
15y = -25
y = -25/15
y = -5/3

jadi, x = 1 dan y = -5/3

4x + 3y= -5
-x + 3y= -10 _
---------------------
5x=5
x=1

4x+3y= -5
4(1)+3y= -5
4+3y= -5
3y= -5-4
3y= -9
y= -9/3
y= -3

jadi X= 1 dan Y= -3