In: Advanced Math
Crammers Rule:



,
,
,
1) 
Unique
solution exists.
2)
Infinite solutions exists.
3)
No solution exists.
Solution is :
,
, 
Using this method now we will find the solution of the given problem.
As
4x-7y+2z=4,
3x-11y+5z=3,
-9x+4y+3z=1
Now we will calculate D, D1, D2 and D3
























As
Given problem
has a unique solution
,
, 






Thus final Solution :


