document.write( "Question 1167494: In fifteen years time ,John Will be N years old.if Mary is 4 years older than John.What is Mary's age in 10 years ago \n" ); document.write( "
Algebra.Com's Answer #792085 by josgarithmetic(39618)\"\" \"About 
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\n" ); document.write( "In fifteen years time ,John Will be N years old.if Mary is 4 years older than John.What is Mary's age in 10 years ago
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\n" ); document.write( "In p years time j will be N years old.
\n" ); document.write( "If m is k years older than j, what will be m-g?
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\n" ); document.write( "\n" ); document.write( "\"system%28j%2Bp=N%2Cm=j%2Bk%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"j=N-p\"
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\n" ); document.write( "\"m=N-p%2Bk\"\r
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\n" ); document.write( "\n" ); document.write( "g years ago, \"m-g=highlight%28N-p%2Bk-g%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"N-15%2B4-10\"
\n" ); document.write( "\"highlight%28N-21%29\"\r
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\n" ); document.write( "\n" ); document.write( "No value for given for N.
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