Question 1064396
<pre><b><font size=4>
I think you must have copied it wrong.  To have the solution
(3,-4) it would have to be

{{{system(3x+2y=1,
x-2y=11)}}}

not 

{{{system(3x+2y=cross(-I1),
x-2y=11)}}}


Put a 1 where you have -I1 then it comes out the answer (3,-4).
You can eliminate y just by adding the two equations term by 
term.

If you have trouble tell me in the thank-you note form below
and I'll get back to you by email.

Edwin</pre></b></font>