Posted by scott.gage@verizon.net (4.47.243.19) on September 27, 2003 at 20:43:07:
In Reply to: Solve system of equations algebraically posted by on March 20, 2003 at 03:04:31:
This problem has taken me about 40 minutes and many attemps to solve...all unsuccessful.
x+y+z-w=5
2x+y-z+w=3
x-2y+3z+w=18
-x-y+z+2w=8
Now I know that in order to solve this it must be solved as a 3X3 --> 2X2 -->1X1 and have everything substituted back into the system.
I'm looking for some help on how I should be trying to solve this. I would be using the elimination method but other than that I'm unclear how to proceed.
Thank you.