document.write( "Question 136885: SOLVE AND GRAPH X+Y=3 X-Y=1 \n" ); document.write( "

Algebra.Com's Answer #100266 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
sometimes it's easier to graph & then solve:
\n" ); document.write( "the solution here is (2,1)
\n" ); document.write( "X+Y=3
\n" ); document.write( "Y=-X+3 (RED LINE)
\n" ); document.write( "X-Y=1
\n" ); document.write( "-Y=-X+1
\n" ); document.write( "Y=X-1 (GREEN LINE)
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x+%2B3%2C+x-1%29+\"$
\n" ); document.write( "(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -x +3 and x -1).
\n" ); document.write( " \n" ); document.write( "

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