Carilah nilai x dan y dengan metode campuran !
Jawaban Terkonfirmasi
Jawab
3x + 3y = -9 } bagi 3
x + y = – 3
5x+y = -11
……………(-)
-4x = 8
x = – 2
x + y = – 3
-2 + y = -3
y = – 3 + 2
y = -1
(x,y) = (-2, -1)
3x+3y=-9
5x+y=-11 | x3
——————-
3x+3y=-9
15x+3y=-11
—————- –
-12x = 2
x=-1/6
3x+3y=-9
3(-1/6) +3y=-9
-1/2 +3y = -9
3y = -9+1/2
3y=-18/2+1/2
3y=-17/2
y=-17/6