SOLUTION: solve the system using matrices. express the solution set as (w,x,y,z) w- x+ y+ z= 10 2w x-4y+3z= 20 3w+ x- 3y-3z= -2 -w+ 2x+ y-3z= -17 the solution set is:

SOLUTION: solve the system using matrices. express the solution set as (w,x,y,z) w- x+ y+ z= 10 2w x-4y+3z= 20 3w+ x- 3y-3z= -2 -w+ 2x+ y-3z= -17 the solution set is:

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Question 256454: solve the system using matrices. express the solution set as (w,x,y,z)
w- x+ y+ z= 10
2w x-4y+3z= 20
3w+ x- 3y-3z= -2
-w+ 2x+ y-3z= -17
the solution set is:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The assumption is that the equation is

.
.
.
The determinant of the matrix is 74.
The inverse matrix is
[A]inv=
and the solution set [X] is,
[X]=
(w,x,y,z)=(354/74,26/74,70/74,342/74)
NOTE : The answer is not in simplest terms.
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