Question

Tolong di bantu yaa :3

Answer 1

Semoga bisa membantu
...

Answer 2

2x+y=4 |dikali1| =2x+y=4
 x-y=5 |dikali2| =2x-2y=10
maka

2x-2y=10
 2x+y=4
_________-
-3y=6
3y= -6
y= -6/3
y= -2

2x-2y=10
2x-2(-2)=10
2x+4=10
2x=10-4
2x=6
x=6/2
x=3

jadi x=3,dan y= -2