Thread: 2 Matrix problems?

How do u think those are solved?
x-2y+2z=4
x-y =-2
2x-3y+2z=2
3x-4y+a.z=0

And
A= 2 1 B= 2 -1
3 1 -3 -1
Solve:
a)X+B=3(A-X)
b)AX-X=AB-B
c) YA+Y=AB+B

Originally Posted by inso

How do u think those are solved?
x-2y+2z=4
x-y =-2
2x-3y+2z=2
3x-4y+a.z=0

And
A= 2 1 B= 2 -1
3 1 -3 -1
Solve:
a)X+B=3(A-X)
b)AX-X=AB-B
c) YA+Y=AB+B

No, I don't think those are solved. Do you want to solve them?