document.write( "Question 982352: Bert is twice as Chang.five yrs ago the sum of their ages was 23.how old is bert \n" ); document.write( "
Algebra.Com's Answer #603183 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "Bert is twice as Chang
\n" ); document.write( "B = 2C
\n" ); document.write( "five yrs ago the sum of their ages was 23
\n" ); document.write( "B - 5 + C - 5 = 23
\n" ); document.write( "Replace B with 2C from first equation.
\n" ); document.write( "2C - 5 + C - 5 = 23
\n" ); document.write( "Collect like terms
\n" ); document.write( "3C - 10 = 23
\n" ); document.write( "3C = 23 + 10
\n" ); document.write( "3C = 33
\n" ); document.write( "C = 11
\n" ); document.write( "Bert = 22 yrs old
\n" ); document.write( "Chang = 11 yrs old
\n" ); document.write( "Hope this helps:-)
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