Answer:
Step-by-step explanation:
Given


The given system is
can be represented by

The given system is consistent when determinant of A is not equal to zero



i.e. system is consistent for all value of k except 

Answer:
21
Step-by-step explanation:
I did the math.
Answer:
2
Step-by-step explanation:
Answer:
(-4,3)
Step-by-step explanation:
hope this helps :)