SOLUTION: Solve the system of equations 3x+6y-z=7 3x-3y+5z=-12 9x+9y-2z=12

SOLUTION: Solve the system of equations 3x+6y-z=7 3x-3y+5z=-12 9x+9y-2z=12

Algebra.Com

Question 352572: Solve the system of equations
3x+6y-z=7
3x-3y+5z=-12
9x+9y-2z=12

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
[A]=
[x]=
[b]=
.
.
[A][x]=[b]
.
.
[x]=[A]inv[b]
.
.
det([A])=
.
.
[A]inv=
.
.
[x]=
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