tolong dijawab dengan benar

MAPEL = MATEMATIKA
KELAS = 8
BAB = SPLDV

eliminasi nilai x
2x + 5y = 11 |×1
x + 2y = 4 |×2

2x + 5y = 11
2x + 4y = 8
_________-
y = 3

subtitusi nilai y
x + 2y = 4
x + 2(3) = 4
x + 6 = 4
x = 4 - 6
x = -2

x = -2
y = 3

nilai 8x + 10y
= 8(-2) + 10(3)
= -16 + 30
= 14 ➡ B.