What are the values of a, b, and c in the matrix addition below?

Answer:
-14 =a
-9 = b
-12 = c
Step-by-step explanation:
In matrix addition we add the corresponding elements to make equations
-10 +-4 = a
-14 =a
3 + -12 = b
-9 = b
-9 + -3 = c
-12 = c