Final answer:
The value of D in the matrix equation d + {-1 -15 0 7} = [8 -4 -14 12] is [9 11 -14 5].
Step-by-step explanation:
To find the value of D in the matrix equation d + {-1 -15 0 7} = [8 -4 -14 12], we need to subtract the given vector {-1 -15 0 7} from the given matrix [8 -4 -14 12].
Subtracting the corresponding elements, we get D = [8 -4 -14 12] - {-1 -15 0 7} = [9 11 -14 5]
Therefore, the value of D is [9 11 -14 5].