Answer:
The answer to your question is: the first option is correct
Step-by-step explanation:
We know that X - A = B , then X = A + B
A 2 -7 B -9 5
6 1 1 -1
X will be the sum of the two matrix given
X = A + B =
2 - 9 -7 + 5 -7 -2
6 +1 1 - 1 7 0
The first option is correct
