document.write( "Question 1150918: Isabelle is 5 years older than her brother joseph ,in 15years the sum of their age is 65. Find their present age \n" ); document.write( "
Algebra.Com's Answer #772486 by Alan3354(69443)\"\" \"About 
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Isabelle is 5 years older than her brother joseph. In 15years the sum of their age is 65. Find their present age
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\n" ); document.write( "in 15 years the sum of their ages is 65 ---> sum now is 35
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\n" ); document.write( "I + J = 35
\n" ); document.write( "I - J = 5
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\n" ); document.write( "2I = 40
\n" ); document.write( "I = 20
\n" ); document.write( "J = 15
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