Question

Selesaikan dengan metode gabungan 2x-3y=16 -5x+y=-27

Answer 1

Verified answer

Materi : SPLDV

2x - 3y = 16     |×1|
-5x + y = -27   |×3|

eliminasi
2x - 3y = 16 
-15x + 3y = -81
---------------------- (+) 
-13x = -65
x = -65/-13
x = 5

subtitusi nilai x = 5 ke 2x - 3y = 16 
2x - 3y = 16 
2(5) - 3y = 16
10 - 16 = 3y
3y = -6
y = -2

jadi HP = {(5,-2)}