document.write( "Question 1010504: Jean is twice as old as her brother. If their combined age is 24, how old is Jean? \n" ); document.write( "
Algebra.Com's Answer #625968 by fractalier(6550)\"\" \"About 
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Call their ages, j and b, so that
\n" ); document.write( "j = 2b and
\n" ); document.write( "j + b = 24
\n" ); document.write( "Now substituting we get
\n" ); document.write( "2b + b = 24
\n" ); document.write( "3b = 24
\n" ); document.write( "b = 8 and then
\n" ); document.write( "j = 16
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