SOLUTION: Could someone please help? I need to a) write each linear equation as a matrix equation in the form of AX=B. then i have to B) solve the system using the inverse that is given for

Algebra ->  Matrices-and-determiminant -> SOLUTION: Could someone please help? I need to a) write each linear equation as a matrix equation in the form of AX=B. then i have to B) solve the system using the inverse that is given for       Log On


   

Question 392769: Could someone please help? I need to a) write each linear equation as a matrix equation in the form of AX=B. then i have to B) solve the system using the inverse that is given for the coefficient matrix.
here is the problem:
The system is:
x-6y+3z=11
2x-7y+3z=14
4x-12y+5z=25
The inverse of: 1 -1 1
0 2 -1
2 3 0






is.... 3 3 -1
-2 -2 1
-4 -5 2

Please help!! I have NO idea where to start! Thank you to whomever responds!!!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Please use Google to search for "Matrix solutions
of Linear Systems".
The web has good explanations and good examples.
Cheers,
Stan H.