-2x - 5y = 3 3x - 8y= -6 kerjakan menggunakan metode subtitusi (SPLDV)

3x-8y = -6
3x = 8y-6 (dibagi 3 sehingga jadi,)
x = 8/3 y - 2

-2x-5y = 3
Masukkan x = 8/3 y - 2
-2(8/3 y - 2) -5y = 3
-16/3 y + 4 - 5y = 3
-31/3y + 4 = 3
-31/3y = 3-4
-31/3y = -1
y = -1 . -3/31
y = 3/31