document.write( "Question 624608: Solve these equations using the addition property.\r
\n" ); document.write( "\n" ); document.write( "x + y = k\r
\n" ); document.write( "\n" ); document.write( "x - y = k\r
\n" ); document.write( "\n" ); document.write( "The lines intersect at
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Algebra.Com's Answer #392901 by Alan3354(69443)\"\" \"About 
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x + y = k
\n" ); document.write( "x - y = k
\n" ); document.write( "---------- Subtract
\n" ); document.write( "2y = 0
\n" ); document.write( "y = 0
\n" ); document.write( "x = k
\n" ); document.write( "==========
\n" ); document.write( "Intersection (k,0)
\n" ); document.write( "
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