Question 227569
Solve the following system of linear equations with three unknowns. 
(Note: Answers are in order of A,B,C.) 
2A+2B+3C=15
A-B+C=2
3A-2B+2C=5 
.. I'm stuck on this on some homework and it would be awesome if you could let me know how to do this. 

<pre><font size = 4 color = "indigo"><b>
There are many ways to solve systems of equations:

1. Substitution only 
2. Elimination (addition) only
3. Substitution and elimination (addition)
4. Cramer's rule (determinants)
5. Augmented matrix method with partial pivoting 
6. Gauss-Jordan method with complete pivoting
7. The AX=B method (inverse matrix method)

If you will tell us which method you are studying,
then I can help you, but otherwise all I can do
is give you the solution, which any of the 7 methods
above will give, namely

(x,y,z) = (1,2,3)

Edwin</pre>