Question

Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.

3x + 5y - 2w = -13
2x + 7z - w = -1
4y + 3z + 3w = 1
-x + 2y + 4z = -5
A. {(-1, - , 0, )}
B. {(1, -2, 0, 3)}
C. {( , -2, 0, )}
D. {( , - , 0, )}

Answer 1

a loooooonnnnngggg work. you have to do it by yourself. hihiihi.
first off, what is the augment matrix ??

Answer 2

sorry the options are inccorect

Answer 3

just please help man

Answer 4

*augmented
I don't care about the options. It asked you to use Gaussian. depend on us only.

Answer 5

ok, let me search and give you the link to do it if you don't want to do by hand. Because it is your problem and you don't want to work by your hand, why me, right?? wait a few minutes.

Answer 6

http://matrix.reshish.com/gauss-jordanElimination.php here, go there and get the answer for free

Answer 7

thank you man

Answer 8

Let A = and B = . Find A - 3B.
subtracting matrix???

Answer 9

yup

Answer 10

A= 1
-3
2

Answer 11

B=-1
3
-2