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