TI 89T help!

<p>In my systems of equation solver...(simult. equations)</p>

<p>It always gives me the answers for what it solved for...but the answer is always the opposite:</p>

<p>x=34
y=23</p>

<p>suppose to be</p>

<p>x=-34
y=-23</p>

<p>help please?</p>