diketahui persamaan 2x+3y+16=0 dan 3x-y -10, maka nila x-y

2x+3y= -16 (x1)
3x-y = 10 (x3)

2x+3y= -16
9x-3y = 30
---------------- +
11x = 14
x= 14/11

masukkan ke persamaam 1
2x+3y = -16
2(14/11) + 3y = -16
28/11 +3y = -16
3y = -16 - 28/11
3y = -176/11 -. 28/11
3y = -204/11
y = -204/11 : 3
y= -204/11 x 1/3
y= -204/33
nilai x -y
14/11 - (-204/33)
42/33+204/33
=246/33
maaf cek lagi yaa