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 

Yy^2 I'm pretty sure is the answer!
You can divided each by 4 and get this easy answer..
100 divided by 4= 25. Hope it helps!
Answer:
x = (180-147)/3
x = 11
Step-by-step explanation: