document.write( "Question 128176This question is from textbook
\n" ); document.write( ": solve the system of equations graphically.\r
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\n" ); document.write( "\n" ); document.write( "x+y=4, x-y=2
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Algebra.Com's Answer #93844 by checkley71(8403)\"\" \"About 
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x+y=4
\n" ); document.write( "x-y=2
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\n" ); document.write( "2x=6
\n" ); document.write( "x=6/2
\n" ); document.write( "x=3 answer.
\n" ); document.write( "3+y=4
\n" ); document.write( "y=4-3
\n" ); document.write( "y=1 answer.
\n" ); document.write( "PROOF:
\n" ); document.write( "3-1=2
\n" ); document.write( "2=2
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