<PRE><B>Question 196383</B>
Just plot both eqautions and then see if they intersect.
{{{graph(400,400,-10,10,-10,10, -x+1, x-2)}}}

Go get geogebra. that tool is really nice for this type of thing.
See this URL for links to nice alge bra tools.
http://collabvsl.wetpaint.com/page/Mathematics+Applications

See this URL for a short video lesson on solving systems of equations.
http://collabvsl.wetpaint.com/page/Solving+Systems+of+Equations
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