Use the inverse of A to decode the cryptogram. 23 13 34 31 34 63 25 17 61 24 14 37 41 17 8 20

Use the inverse of A to decode the cryptogram.

23 13 ˆ’34 31 ˆ’34 63 25 ˆ’17 61
24 14 ˆ’37 41 ˆ’17 ˆ’8 20 ˆ’29 40 38
ˆ’56 116 13 ˆ’11 1 22 ˆ’3 ˆ’6 41
ˆ’53 85 28 ˆ’32 16

21 [1 -2 1 -3 A = -1 4