Answer:
a= 4
b= -10
c= -7d= -1
Explanation:
For subtraction and addition of matrices, it follows the order of subtracting or adding numbers that are in the same row and column
a = 2 - (-2)
= 2 + 2
=4
b= -3 -7
= -10
c= 4-11
= -7
d=-1-0
= -1
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