<PRE><B>Question 3399</B>
We have two equations:&lt;br&gt;
2x=2-y&lt;br&gt;
3x+y=-1&lt;br&gt;
add y to both side of the first equation to get:&lt;br&gt;
2x + y = 2 and &lt;br&gt;
3x + y = -1&lt;br&gt;
subtract the first equation from the second to get:&lt;br&gt;
{{{3x + y - (2x + y) = -1 - 2}}}&lt;br&gt;
this reduces to x = -3. Substitute x into the first equation to get {{{-6 = 2 - y}}}&lt;br&gt;
subtract 2 from either side and multiply through by -1 to get {{{y = 8}}}</PRE>