document.write( "Question 895539: Mary is n years old. How old will she be in 4 years? How old was she 6 years ago? In 4 years, Mary will be x (?) years old. \n" ); document.write( "
Algebra.Com's Answer #542910 by Alan3354(69443)\"\" \"About 
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Mary is n years old. How old will she be in 4 years?
\n" ); document.write( "n + 4
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\n" ); document.write( "How old was she 6 years ago?
\n" ); document.write( "n - 6
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\n" ); document.write( "In 4 years, Mary will be x (?) years old.
\n" ); document.write( "Is that a question?
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