SOLUTION: Find x1 and x2 for(show steps involved): [-4 5][x1]+[ 3]=[71] [-2-4][x2] [18] [ 0] *note* both lines are part of the same matrix equation, I didn't know how to type it as a

SOLUTION: Find x1 and x2 for(show steps involved): [-4 5][x1]+[ 3]=[71] [-2-4][x2] [18] [ 0] note both lines are part of the same matrix equation, I didn't know how to type it as a

Question 324812: Find x1 and x2 for(show steps involved):
[-4 5][x1]+[ 3]=[71]
[-2-4][x2] [18] [ 0]
*note* both lines are part of the same matrix equation, I didn't know how to type it as a continuous multi-line matrix bracket.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
I think this is what you mean.

Simplify,

.
.
.
[A][x]=[b]
[A]inv[A][x]=[A]inv[b]
[x]=[A]inv[b]
.
.
.
[A]=
.
.
.
Find the inverse of the coefficient matrix [A],
det([A])=
[A]inv=
[x]=
.
.
.

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