Janelle wrote the matrix addition below. 3
-1
-5
0
4
1
-6
-7
-1
-7
18
6
m-1
-9
+
0
-12 2+
4.
0
3
10
12
-4
17
S+1
7
1
-18
8
14
-11
5
32 -28
20
Which statement is true?
(n+4) - 7 = 18
((m-1)+ 12)+0= 12
o ((+1)- 18) +11 =-28
On+(m-1)+(5+1) = -28
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