document.write( "Question 272012: solve the system of equations by graphing\r
\n" ); document.write( "\n" ); document.write( "x-y=4
\n" ); document.write( "x+y=8
\n" ); document.write( "

Algebra.Com's Answer #199061 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Solve by graphing:
\n" ); document.write( "x-y = 4
\n" ); document.write( "x+y = 8
\n" ); document.write( "Rewrite these as:
\n" ); document.write( "y = x-4
\n" ); document.write( "y = -x+8
\n" ); document.write( "Now graph them:
\n" ); document.write( "\"graph%28400%2C400%2C-5%2C10%2C-5%2C5%2Cx-4%2C-x%2B8%29\"
\n" ); document.write( "Notice that the lines intersect at (6,2) so this is the solution to this system of equations.
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