Thread: Help!!!!!

http://i46.tinypic.com/dcsmc9.jpg

if you cant read the numbers, here they are:

First one:

A=
.05 .10 .10
.10 .15 .05
.05 .20 .20

D=
50
100
80

Solve the system using the open model X=AX+D or X=(I-A)^-1D
__________________

Originally Posted by NinjaBunny

A=
.05 .10 .10
.10 .15 .05
.05 .20 .20
D=
50
100
80

I presume above means something like this:

5a + 10b + 10c = 5000 [1]
10a + 15b + 5c = 10000 [2]
5a + 20b + 20c = 8000 [3]

[3] - [1]: 10b + 10c = 3000 ; b + c = 300

...and so on...
Yes?