document.write( "Question 892461: Jan is 7 years younger than Lucy and 4 years older than Sam The average of their ages is 16. How old is Jan? Sam? Lucy? \n" ); document.write( "
Algebra.Com's Answer #540535 by lwsshak3(11628)\"\" \"About 
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Jan is 7 years younger than Lucy and 4 years older than Sam The average of their ages is 16. How old is Jan? Sam? Lucy?
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\n" ); document.write( "let x=Jan's age
\n" ); document.write( "x+7=Lucy's age
\n" ); document.write( "x-4=Sam's age
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\n" ); document.write( "\n" ); document.write( "x+(x+7)+(x-4)/3=16
\n" ); document.write( "3x+3=48
\n" ); document.write( "3x=45
\n" ); document.write( "x=15
\n" ); document.write( "x+7=22
\n" ); document.write( "x-4=11
\n" ); document.write( "Jan's age=15
\n" ); document.write( "Lucy's age=22
\n" ); document.write( "Sam's age=11
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