2 subtracted by 3 = -1
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1
No.Two matrices A and B can be added or subtracted if and only if they have the same number of rows and columns. That is a 3 x 2 matrix can be added or subtracted only with another 3 x 2 matrix.
(4+5) - (2 x 3) = 3
6
2.75 or 2 3/4 3 1/2 - 3/4 = 7/2 -3/4 = 14/4 - 3/4 = 11/4 = 2 3/4