SOLUTION: 3x-3y+3z=-27
2x+2y+3z=-3
-3x+2y+2z=-3
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Question 119112: 3x-3y+3z=-27
2x+2y+3z=-3
-3x+2y+2z=-3
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
You didn't specify a solution method.
Hopefully a matrix solution is OK.
[A][x]=[b]
where
[A]=
[x]=
[b]=
We then need to find the inverse of [A]([Ainv]) and matrix multiply by [b] to get [x].
[A][x]=[b]
[x]=[Ainv][b]
[Ainv]=(1/63)*
[Ainv][b]=(1/63)*
[x]=
x=1
y=5
z=-5
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