document.write( "Question 574164: x+y=6
\n" ); document.write( "y=2x
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Algebra.Com's Answer #368999 by Maths68(1474)\"\" \"About 
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\"x%2By=6\"..............(1)
\n" ); document.write( "\"y=2x\"...............(2)\r
\n" ); document.write( "\n" ); document.write( "Put in the value of y from (2) to (1)
\n" ); document.write( "\"x%2B2x=6\"
\n" ); document.write( "\"3x=6\"
\n" ); document.write( "\"3x%2F3=6%2F3\"
\n" ); document.write( "\"cross%283%29x%2Fcross%283%29=cross%286%29%2Fcross%283%29\"
\n" ); document.write( "\"x=2\"
\n" ); document.write( "Put the value of x in (2)
\n" ); document.write( "\"y=2%282%29\"
\n" ); document.write( "\"y=4%29\"\r
\n" ); document.write( "\n" ); document.write( "x,y=2,4\r
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\n" ); document.write( "\n" ); document.write( "Check
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\n" ); document.write( "Put the value of x and y in (1)
\n" ); document.write( "\"x%2By=6\"..............(1)
\n" ); document.write( "\"2%2B4=6\"
\n" ); document.write( "\"6=6\"
\n" ); document.write( "Put the value of x and y in (2)
\n" ); document.write( "\"y=2x\"
\n" ); document.write( "\"4=2%282%29\"
\n" ); document.write( "\"4=4\"
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