5x + 4y = 10 dan 3x - 2y = 3 pakai metode gabungan

Materi SPLDV

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Bab Persamaan Linear
Matematika SMP Kelas VIII

3x - 2y = 3 → dikali 2 → 6x - 4y = 6

5x + 4y = 10
6x - 4y = 6
--------------------- +
11x = 16
x = 16/11

3x - 2y = 3
3 . 16/11 - 2y = 3
2y = 48/11 - 33/11
y = 15/(2 . 11)
y = 15/22


HP = {(16/11, 15/22)}