3x-4y=17 dan x-2y=-8 metode eliminasi-substitusi
Jawaban Terkonfirmasi
3x – 4y = 17 | x 1 | 3x – 4y = 17
x – 2y = – 8 | x 3 | 3x – 6y = – 24 ₋
2y = 41
y = 41/2
Substitusi y = 41/2 ke persamaan (2)
x – 2y = – 8
x – 2(41/2) = – 8
x – 82/2 = – 8
x – 41 = – 8
x = – 8 + 41
x = 33