SOLUTION: Is it A? I want to check my answer. Determine the value of the following if it is possible. If it is not possible, explain. A. B. C. D. The dimensions of the

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Question 1161516: Is it A? I want to check my answer.
Determine the value of the following if it is possible.
If it is not possible, explain.
A.
B.
C.
D. The dimensions of the matrices don't align properly to find their sum.

The question is provided in the link here: https://i.imgur.com/zU5xVEY.png
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

matrix%282%2C1%2C8%2C5%29+matrix%282%2C1%2C-3%2C8%29-matrix%282%2C1%2C-2%2C1%29

=matrix%282%2C1%2C%288%2B%28-3%29%29%2C%285%2B8%29%29-matrix%282%2C1%2C-2%2C1%29

=matrix%282%2C1%2C5%2C13%29-matrix%282%2C1%2C-2%2C1%29

=matrix%282%2C1%2C%285-%28-2%29%29%2C%2813-1%29%29

=matrix%282%2C1%2C7%2C12%29

so, it is A.