document.write( "Question 440871: The combined ages of Jerry and Joan is 43. The combined ages of Jerry and Charlie is 55. The combined ages of Joan and Charlie is 66. How old is Jerry, Joan and Charlie? \n" ); document.write( "
Algebra.Com's Answer #304446 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Write an equation for each statement:
\n" ); document.write( ":
\n" ); document.write( "The combined ages of Jerry and Joan is 43.
\n" ); document.write( "je + jo = 43
\n" ); document.write( ":
\n" ); document.write( "The combined ages of Jerry and Charlie is 55.
\n" ); document.write( "je + ch = 55
\n" ); document.write( ":
\n" ); document.write( "The combined ages of Joan and Charlie is 66.
\n" ); document.write( "jo + ch = 66
\n" ); document.write( "ch = (66-jo)
\n" ); document.write( ":
\n" ); document.write( "Replace ch with (66-jo) in the 2nd equation
\n" ); document.write( "je + (66-jo) = 55
\n" ); document.write( "je - jo = 55 - 66
\n" ); document.write( "je - jo = -11
\n" ); document.write( "Add this equation to the 1st equation
\n" ); document.write( "je - jo = -11
\n" ); document.write( "je + jo = 43
\n" ); document.write( "-----------------adding eliminates jo, find je
\n" ); document.write( "2je = 32
\n" ); document.write( "je = \"32%2F2\"
\n" ); document.write( "je = 16 yrs is Jerry's age
\n" ); document.write( "then
\n" ); document.write( "16 + jo = 43
\n" ); document.write( "jo = 43 - 16
\n" ); document.write( "jo = 27 yrs is Joan's age
\n" ); document.write( "and
\n" ); document.write( "ch = 66 - 27
\n" ); document.write( "ch = 39 yrs is Charlie's age
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solutions in each statement:
\n" ); document.write( "The combined ages of Jerry and Joan is 43.
\n" ); document.write( "16 + 27 = 43
\n" ); document.write( " The combined ages of Jerry and Charlie is 55.
\n" ); document.write( "16 + 39 = 55
\n" ); document.write( "The combined ages of Joan and Charlie is 66.
\n" ); document.write( "27 + 39 = 66 \r
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