Question 233220
<pre><font size = 4 color = "indigo"><b>
If you meant this system:

{{{system(0.3x-0.2y=4, 0.4x+red(0.5y)=1)}}}

then you are right.  But that's not the system you posted.

You posted this system instead:

{{{system(0.3x-0.2y=4, 0.4x+red(5y)=1)}}} 

and the correct solution to it is (1010/79, -65/79)

Edwin</pre>