SPLDV x+y=9 dan 2x+1=x+y

SPLDV

x + y = 9

2x + 1 = x + y ➡ ( ganti dengan 9 karna x + y = 9 )
2x + 1 = 9
2x = 9 - 1
2x = 8
x = 8/2
x = 4

x + y = 9
4 + y = 9
y = 9 - 4
y = 5

HP = { 4,5 }

•x+y=9
•2x+1=x+y
>2x-x-y=-1
>x-y=-1


x+y=9
}
x-y=-1
[kurangkan variabel x]
2y=10
y=5


x+y=9
x+5=9
x=9-5
x=4

jadi HP={4,5}