Question 1001625
.
If

A = 	[ 8  6 -3 ]
	[5  -5  9 ]

And,

B =	[  7  -9 ]
	[ -6   4 ]

{{{highlight(Then)}}} A+B = 


I am really not sure how to do this.
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Hey,  they want you to add two matrices,  2x3-matrix  A  and  2x2-matrix  B,


A = {{{(matrix(2,3, 8,6,-3, 5, -5,9))}}} and B = {{{(matrix(2,2, 7,-9, -6,4))}}}.


Then answer is:  it is not possible to add these two matrices,  because they have inappropriate dimensions.


They only want to check if you know rules.  That's all.