tolong ya kk. terima kasih

AX = B ==> X = A^-1 . B

(2 .. -1) X = (-6 ... 6)
(1 .. 3) ........ (-3 .. 10)

A = (2 .. -1)
..... (1 ... 3)

A^-1 = 1/(2.3 - 1(-1)) . (3 ... 1)
................................... (-1 .. 2)

A^-1 = 1/7 (3 .. 1)
................. (-1 .. 2)

X = A^-1 . B

X = 1/7 (3 .... 1) (-6 .. 6)
............. (-1 .. 2) (-3 .. 10)

X = 1/7 (3(-6) + 1(-3) .... 3(6) + 1(10))
............. (-1(-6) + 2(-3) .. -1(6) + 2(10))

X = 1/7 (-21 ... 28)
............ (0 ....... 14)

X = (-3 .. 4)
....... (0 .. 2)

Keterangan :
^ = pangkat
....... = anggap spasi