document.write( "Question 623823: Please help solve this using addition
\n" ); document.write( "X+2y=13
\n" ); document.write( "-x+y=15
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Algebra.Com's Answer #392338 by edjones(8007)\"\" \"About 
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x+2y=13
\n" ); document.write( "-x+y=15
\n" ); document.write( "---------Add
\n" ); document.write( "3y=28
\n" ); document.write( ".
\n" ); document.write( "y=28/3
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\n" ); document.write( "Ed
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