document.write( "Question 758679: x+y=7
\n" ); document.write( "x-9y=-13 \n" ); document.write( "
Algebra.Com's Answer #461621 by Cromlix(4381)\"\" \"About 
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x+y=7.........1
\n" ); document.write( "x-9y=-13......2
\n" ); document.write( "Subtract 1 from 2
\n" ); document.write( " 10y = 20
\n" ); document.write( " y = 2
\n" ); document.write( "Substitute y = 2
\n" ); document.write( "in Eq (1)
\n" ); document.write( "x + y = 7
\n" ); document.write( "x + 2 = 7
\n" ); document.write( " x = 7 - 2
\n" ); document.write( " x = 5\r
\n" ); document.write( "\n" ); document.write( " x = 5 y = 2
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "
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