document.write( "Question 1107982: xy + 3x = 3 3x + y = 7 \n" ); document.write( "
Algebra.Com's Answer #723049 by josgarithmetic(39630)\"\" \"About 
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\"system%28xy+%2B+3x+=+3%2C3x+%2B+y+=+7%29\"\r
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\n" ); document.write( "\n" ); document.write( "Substitution for y gives \"x%287-3x%29%2B3x=3\", \r
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\n" ); document.write( "\"3x%5E2-10x%2B3=0\"\r
\n" ); document.write( "\n" ); document.write( "Discriminant is ,... \"8%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "\"x=%2810%2B-+8%29%2F6\"
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