Question 628831
<pre>
{{{system(x+y=1,
 2x+5y=4)}}}

If you're doing it by the augmented matrix method (Gauss-Jordan method),

{{{(matrix(2,4,

1,1,"|",1,
2,5,"|",4))}}}

If you're doing it by the AX=B matrix method and multiplying
by the inverse:

{{{(matrix(2,2,1,1,2,5))}}}·{{{(matrix(2,1,x,y))}}} = {{{(matrix(2,1,1,4))}}}

Edwin</pre>