document.write( "Question 410265: Using substitution
\n" ); document.write( "y=3+x
\n" ); document.write( "2x+y=8
\n" ); document.write( "can you show me how to do this problem
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Algebra.Com's Answer #288546 by rfer(16322)\"\" \"About 
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y=3+x
\n" ); document.write( "2x+y=8
\n" ); document.write( "2x+3+x=8
\n" ); document.write( "3x=5
\n" ); document.write( "x=5/3
\n" ); document.write( "---------
\n" ); document.write( "2*5/3+y=8
\n" ); document.write( "10/3+y=8
\n" ); document.write( "y=8-10/3
\n" ); document.write( "y=24/3-10/3
\n" ); document.write( "y=14/3
\n" ); document.write( "y=4 2/3
\n" ); document.write( "----------
\n" ); document.write( "proof
\n" ); document.write( "y=3+x
\n" ); document.write( "14/3=3+5/3
\n" ); document.write( "14/3=9/3+5/3
\n" ); document.write( "
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