document.write( "Question 505837: Mary is n years old. How old will she be in 7 year?s How old was she 8 years ago? \n" ); document.write( "
Algebra.Com's Answer #339982 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Present age of Mary = n\r \n" ); document.write( "\n" ); document.write( "In 7 years means we have to add 7 to her present age \n" ); document.write( "In 7 years she will be = n+7 years old\r \n" ); document.write( "\n" ); document.write( "8 years ago means we have to subtract 8 from her present age \n" ); document.write( "8 years ago she was = n-8 \n" ); document.write( " |